Sylpheed

/*

 * LibSylph -- E-Mail client library

 * Copyright (C) 1999-2007 Hiroyuki Yamamoto

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#ifdef HAVE_CONFIG_H

#  include "config.h"

#endif

#include "defs.h"

#include <glib.h>

#include <glib/gi18n.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include "folder.h"

#include "session.h"

#include "imap.h"

#include "news.h"

#include "mh.h"

#include "virtual.h"

#include "utils.h"

#include "xml.h"

#include "codeconv.h"

#include "prefs.h"

#include "account.h"

#include "prefs_account.h"

static GList *folder_list = NULL;

static void folder_init                (Folder                *folder,

                                 const gchar        *name);

static gboolean folder_read_folder_func        (GNode                *node,

                                         gpointer         data);

static gchar *folder_get_list_path        (void);

static void folder_write_list_recursive        (GNode                *node,

                                         gpointer         data);

Folder *folder_new(FolderType type, const gchar *name, const gchar *path)

{

        Folder *folder = NULL;

        name = name ? name : path;

        switch (type) {

        case F_MH:

                folder = mh_get_class()->folder_new(name, path);

                break;

        case F_IMAP:

                folder = imap_get_class()->folder_new(name, path);

                break;

        case F_NEWS:

                folder = news_get_class()->folder_new(name, path);

                break;

        default:

                return NULL;

        }

        return folder;

}

static void folder_init(Folder *folder, const gchar *name)

{

        FolderItem *item;

        g_return_if_fail(folder != NULL);

        folder_set_name(folder, name);

        folder->account = NULL;

        folder->inbox = NULL;

        folder->outbox = NULL;

        folder->draft = NULL;

        folder->queue = NULL;

        folder->trash = NULL;

        folder->ui_func = NULL;

        folder->ui_func_data = NULL;

        item = folder_item_new(name, NULL);

        item->folder = folder;

        folder->node = item->node = g_node_new(item);

        folder->data = NULL;

}

void folder_local_folder_init(Folder *folder, const gchar *name,

                              const gchar *path)

{

        folder_init(folder, name);

        LOCAL_FOLDER(folder)->rootpath = g_strdup(path);

}

void folder_remote_folder_init(Folder *folder, const gchar *name,

                               const gchar *path)

{

        folder_init(folder, name);

        REMOTE_FOLDER(folder)->session = NULL;

}

void folder_destroy(Folder *folder)

{

        g_return_if_fail(folder != NULL);

        g_return_if_fail(folder->klass->destroy != NULL);

        folder->klass->destroy(folder);

        folder_list = g_list_remove(folder_list, folder);

        folder_tree_destroy(folder);

        g_free(folder->name);

        g_free(folder);

}

void folder_local_folder_destroy(LocalFolder *lfolder)

{

        g_return_if_fail(lfolder != NULL);

        g_free(lfolder->rootpath);

}

void folder_remote_folder_destroy(RemoteFolder *rfolder)

{

        g_return_if_fail(rfolder != NULL);

        if (rfolder->session)

                session_destroy(rfolder->session);

}

gint folder_scan_tree(Folder *folder)

{

        g_return_val_if_fail(folder != NULL, -1);

        g_return_val_if_fail(folder->klass->scan_tree != NULL, -1);

        return folder->klass->scan_tree(folder);

}

gint folder_create_tree(Folder *folder)

{

        g_return_val_if_fail(folder != NULL, -1);

        g_return_val_if_fail(folder->klass->create_tree != NULL, -1);

        return folder->klass->create_tree(folder);

}

FolderItem *folder_item_new(const gchar *name, const gchar *path)

{

        FolderItem *item;

        item = g_new0(FolderItem, 1);

        item->stype = F_NORMAL;

        item->name = g_strdup(name);

        item->path = g_strdup(path);

        item->mtime = 0;

        item->new = 0;

        item->unread = 0;

        item->total = 0;

        item->unmarked_num = 0;

        item->last_num = -1;

        item->no_sub = FALSE;

        item->no_select = FALSE;

        item->collapsed = FALSE;

        item->threaded = TRUE;

        item->opened = FALSE;

        item->updated = FALSE;

        item->cache_dirty = FALSE;

        item->mark_dirty = FALSE;

        item->node = NULL;

        item->parent = NULL;

        item->folder = NULL;

        item->account = NULL;

        item->ac_apply_sub = FALSE;

        item->auto_to = NULL;

        item->use_auto_to_on_reply = FALSE;

        item->auto_cc = NULL;

        item->auto_bcc = NULL;

        item->auto_replyto = NULL;

        item->mark_queue = NULL;

        item->last_selected = 0;

        item->qsearch_cond_type = 0;

        item->data = NULL;

        return item;

}

void folder_item_append(FolderItem *parent, FolderItem *item)

{

        g_return_if_fail(parent != NULL);

        g_return_if_fail(parent->folder != NULL);

        g_return_if_fail(parent->node != NULL);

        g_return_if_fail(item != NULL);

        item->parent = parent;

        item->folder = parent->folder;

        item->node = g_node_append_data(parent->node, item);

}

FolderItem *folder_item_copy(FolderItem *item)

{

        FolderItem *new_item;

        new_item = g_new0(FolderItem, 1);

        new_item->stype = item->stype;

        new_item->name = g_strdup(item->name);

        new_item->path = g_strdup(item->path);

        new_item->mtime = item->mtime;

        new_item->new = item->new;

        new_item->unread = item->unread;

        new_item->total = item->total;

        new_item->unmarked_num = item->unmarked_num;

        new_item->last_num = item->last_num;

        new_item->no_sub = item->no_sub;

        new_item->no_select = item->no_select;

        new_item->collapsed = item->collapsed;

        new_item->threaded = item->threaded;

        new_item->opened = item->opened;

        new_item->updated = item->updated;

        new_item->cache_dirty = item->cache_dirty;

        new_item->mark_dirty = item->mark_dirty;

        new_item->node = item->node;

        new_item->parent = item->parent;

        new_item->folder = item->folder;

        new_item->account = item->account;

        new_item->ac_apply_sub = item->ac_apply_sub;

        new_item->auto_to = g_strdup(item->auto_to);

        new_item->use_auto_to_on_reply = item->use_auto_to_on_reply;

        new_item->auto_cc = g_strdup(item->auto_cc);

        new_item->auto_bcc = g_strdup(item->auto_bcc);

        new_item->auto_replyto = g_strdup(item->auto_replyto);

        new_item->mark_queue = item->mark_queue;

        new_item->last_selected = item->last_selected;

        new_item->qsearch_cond_type = item->qsearch_cond_type;

        new_item->data = item->data;

        return new_item;

}

static gboolean folder_item_remove_func(GNode *node, gpointer data)

{

        FolderItem *item = FOLDER_ITEM(node->data);

        folder_item_destroy(item);

        return FALSE;

}

void folder_item_remove(FolderItem *item)

{

        GNode *node;

        g_return_if_fail(item != NULL);

        g_return_if_fail(item->folder != NULL);

        g_return_if_fail(item->node != NULL);

        node = item->node;

        if (item->folder->node == node)

                item->folder->node = NULL;

        g_node_traverse(node, G_POST_ORDER, G_TRAVERSE_ALL, -1,

                        folder_item_remove_func, NULL);

        g_node_destroy(node);

}

void folder_item_remove_children(FolderItem *item)

{

        GNode *node, *next;

        g_return_if_fail(item != NULL);

        g_return_if_fail(item->folder != NULL);

        g_return_if_fail(item->node != NULL);

        node = item->node->children;

        while (node != NULL) {

                next = node->next;

                folder_item_remove(FOLDER_ITEM(node->data));

                node = next;

        }

}

void folder_item_destroy(FolderItem *item)

{

        Folder *folder;

        g_return_if_fail(item != NULL);

        folder = item->folder;

        if (folder) {

                if (folder->inbox == item)

                        folder->inbox = NULL;

                else if (folder->outbox == item)

                        folder->outbox = NULL;

                else if (folder->draft == item)

                        folder->draft = NULL;

                else if (folder->queue == item)

                        folder->queue = NULL;

                else if (folder->trash == item)

                        folder->trash = NULL;

        }

        g_free(item->name);

        g_free(item->path);

        g_free(item->auto_to);

        g_free(item->auto_cc);

        g_free(item->auto_bcc);

        g_free(item->auto_replyto);

        g_free(item);

}

gint folder_item_compare(FolderItem *item_a, FolderItem *item_b)

{

        gint ret;

        gchar *str_a, *str_b;

        if (!item_a || !item_b)

                return 0;

        if (!item_a->parent || !item_b->parent)

                return 0;

        if (!item_a->name || !item_b->name)

                return 0;

        /* if both a and b are special folders, sort them according to

         * their types (which is in-order). Note that this assumes that

         * there are no multiple folders of a special type. */

        if (item_a->stype != F_NORMAL && item_b->stype != F_NORMAL)

                return item_a->stype - item_b->stype;

         /* if b is normal folder, and a is not, b is smaller (ends up

          * lower in the list) */

        if (item_a->stype != F_NORMAL && item_b->stype == F_NORMAL)

                return item_b->stype - item_a->stype;

        /* if b is special folder, and a is not, b is larger (ends up

         * higher in the list) */

        if (item_a->stype == F_NORMAL && item_b->stype != F_NORMAL)

                return item_b->stype - item_a->stype;

        /* otherwise just compare the folder names */

        str_a = g_utf8_casefold(item_a->name, -1);

        str_b = g_utf8_casefold(item_b->name, -1);

        ret = g_utf8_collate(str_a, str_b);

        g_free(str_b);

        g_free(str_a);

        return ret;

}

void folder_set_ui_func(Folder *folder, FolderUIFunc func, gpointer data)

{

        g_return_if_fail(folder != NULL);

        folder->ui_func = func;

        folder->ui_func_data = data;

}

void folder_set_name(Folder *folder, const gchar *name)

{

        g_return_if_fail(folder != NULL);

        g_free(folder->name);

        folder->name = name ? g_strdup(name) : NULL;

        if (folder->node && folder->node->data) {

                FolderItem *item = (FolderItem *)folder->node->data;

                g_free(item->name);

                item->name = name ? g_strdup(name) : NULL;

        }

}

void folder_tree_destroy(Folder *folder)

{

        g_return_if_fail(folder != NULL);

        if (folder->node)

                folder_item_remove(FOLDER_ITEM(folder->node->data));

}

void folder_add(Folder *folder)

{

        Folder *cur_folder;

        GList *cur;

        gint i;

        g_return_if_fail(folder != NULL);

        for (i = 0, cur = folder_list; cur != NULL; cur = cur->next, i++) {

                cur_folder = FOLDER(cur->data);

                if (FOLDER_TYPE(folder) == F_MH) {

                        if (FOLDER_TYPE(cur_folder) != F_MH) break;

                } else if (FOLDER_TYPE(folder) == F_IMAP) {

                        if (FOLDER_TYPE(cur_folder) != F_MH &&

                            FOLDER_TYPE(cur_folder) != F_IMAP) break;

                } else if (FOLDER_TYPE(folder) == F_NEWS) {

                        if (FOLDER_TYPE(cur_folder) != F_MH &&

                            FOLDER_TYPE(cur_folder) != F_IMAP &&

                            FOLDER_TYPE(cur_folder) != F_NEWS) break;

                }

        }

        folder_list = g_list_insert(folder_list, folder, i);

}

GList *folder_get_list(void)

{

        return folder_list;

}

gint folder_read_list(void)

{

        GNode *node;

        XMLNode *xmlnode;

        gchar *path;

        path = folder_get_list_path();

        if (!is_file_exist(path)) return -1;

        node = xml_parse_file(path);

        if (!node) return -1;

        xmlnode = node->data;

        if (strcmp2(xmlnode->tag->tag, "folderlist") != 0) {

                g_warning("wrong folder list\n");

                xml_free_tree(node);

                return -1;

        }

        g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, 2,

                        folder_read_folder_func, NULL);

        xml_free_tree(node);

        if (folder_list)

                return 0;

        else

                return -1;

}

void folder_write_list(void)

{

        GList *list;

        Folder *folder;

        gchar *path;

        PrefFile *pfile;

        path = folder_get_list_path();

        if ((pfile = prefs_file_open(path)) == NULL) return;

        fprintf(pfile->fp, "<?xml version=\"1.0\" encoding=\"%s\"?>\n",

                CS_INTERNAL);

        fputs("\n<folderlist>\n", pfile->fp);

        for (list = folder_list; list != NULL; list = list->next) {

                folder = list->data;

                folder_write_list_recursive(folder->node, pfile->fp);

        }

        fputs("</folderlist>\n", pfile->fp);

        if (prefs_file_close(pfile) < 0)

                g_warning("failed to write folder list.\n");

}

struct TotalMsgStatus

{

        guint new;

        guint unread;

        guint total;

        GString *str;

};

static gboolean folder_get_status_full_all_func(GNode *node, gpointer data)

{

        FolderItem *item;

        struct TotalMsgStatus *status = (struct TotalMsgStatus *)data;

        gchar *id;

        g_return_val_if_fail(node->data != NULL, FALSE);

        item = FOLDER_ITEM(node->data);

        if (!item->path) return FALSE;

        status->new += item->new;

        status->unread += item->unread;

        status->total += item->total;

        if (status->str) {

                id = folder_item_get_identifier(item);

                g_string_sprintfa(status->str, "%5d %5d %5d %s\n",

                                  item->new, item->unread,

                                  item->total, id);

                g_free(id);

        }

        return FALSE;

}

static void folder_get_status_full_all(GString *str, guint *new, guint *unread,

                                       guint *total)

{

        GList *list;

        Folder *folder;

        struct TotalMsgStatus status;

        status.new = status.unread = status.total = 0;

        status.str = str;

        debug_print("Counting total number of messages...\n");

        for (list = folder_list; list != NULL; list = list->next) {

                folder = FOLDER(list->data);

                if (folder->node)

                        g_node_traverse(folder->node, G_PRE_ORDER,

                                        G_TRAVERSE_ALL, -1,

                                        folder_get_status_full_all_func,

                                        &status);

        }

        *new = status.new;

        *unread = status.unread;

        *total = status.total;

}

gchar *folder_get_status(GPtrArray *folders, gboolean full)

{

        guint new, unread, total;

        GString *str;

        gint i;

        gchar *ret;

        new = unread = total = 0;

        str = g_string_new(NULL);

        if (folders) {

                for (i = 0; i < folders->len; i++) {

                        FolderItem *item;

                        item = g_ptr_array_index(folders, i);

                        new += item->new;

                        unread += item->unread;

                        total += item->total;

                        if (full) {

                                gchar *id;

                                id = folder_item_get_identifier(item);

                                g_string_sprintfa(str, "%5d %5d %5d %s\n",

                                                  item->new, item->unread,

                                                  item->total, id);

                                g_free(id);

                        }

                }

        } else {

                folder_get_status_full_all(full ? str : NULL,

                                           &new, &unread, &total);

        }

        if (full)

                g_string_sprintfa(str, "%5d %5d %5d\n", new, unread, total);

        else

                g_string_sprintfa(str, "%d %d %d\n", new, unread, total);

        ret = str->str;

        g_string_free(str, FALSE);

        return ret;

}

Folder *folder_find_from_path(const gchar *path)

{

        GList *list;

        Folder *folder;

        for (list = folder_list; list != NULL; list = list->next) {

                folder = list->data;

                if (FOLDER_TYPE(folder) == F_MH &&

                    !path_cmp(LOCAL_FOLDER(folder)->rootpath, path))

                        return folder;

        }

        return NULL;

}

Folder *folder_find_from_name(const gchar *name, FolderType type)

{

        GList *list;

        Folder *folder;

        for (list = folder_list; list != NULL; list = list->next) {

                folder = list->data;

                if (FOLDER_TYPE(folder) == type &&

                    strcmp2(name, folder->name) == 0)

                        return folder;

        }

        return NULL;

}

static gboolean folder_item_find_func(GNode *node, gpointer data)

{

        FolderItem *item = node->data;

        gpointer *d = data;

        const gchar *path = d[0];

        if (path_cmp(path, item->path) != 0)

                return FALSE;

        d[1] = item;

        return TRUE;

}

FolderItem *folder_find_item_from_path(const gchar *path)

{

        Folder *folder;

        gpointer d[2];

        folder = folder_get_default_folder();

        g_return_val_if_fail(folder != NULL, NULL);

        d[0] = (gpointer)path;

        d[1] = NULL;

        g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,

                        folder_item_find_func, d);

        return d[1];

}

FolderItem *folder_find_child_item_by_name(FolderItem *item, const gchar *name)

{

        GNode *node;

        FolderItem *child;

        for (node = item->node->children; node != NULL; node = node->next) {

                child = FOLDER_ITEM(node->data);

                if (strcmp2(g_basename(child->path), name) == 0)

                        return child;

        }

        return NULL;

}

static const struct {

        gchar *str;

        FolderType type;

} type_str_table[] = {

        {"#mh"     , F_MH},

        {"#mbox"   , F_MBOX},

        {"#maildir", F_MAILDIR},

        {"#imap"   , F_IMAP},

        {"#news"   , F_NEWS}

};

static gchar *folder_get_type_string(FolderType type)

{

        gint i;

        for (i = 0; i < sizeof(type_str_table) / sizeof(type_str_table[0]);

             i++) {

                if (type_str_table[i].type == type)

                        return type_str_table[i].str;

        }

        return NULL;

}

static FolderType folder_get_type_from_string(const gchar *str)

{

        gint i;

        for (i = 0; i < sizeof(type_str_table) / sizeof(type_str_table[0]);

             i++) {

                if (g_ascii_strcasecmp(type_str_table[i].str, str) == 0)

                        return type_str_table[i].type;

        }

        return F_UNKNOWN;

}

gchar *folder_get_identifier(Folder *folder)

{

        gchar *type_str;

        g_return_val_if_fail(folder != NULL, NULL);

        type_str = folder_get_type_string(FOLDER_TYPE(folder));

        return g_strconcat(type_str, "/", folder->name, NULL);

}

gchar *folder_item_get_identifier(FolderItem *item)

{

        gchar *id;

        gchar *folder_id;

        g_return_val_if_fail(item != NULL, NULL);

        if (!item->path) {

                if (!item->parent)

                        return folder_get_identifier(item->folder);

                else

                        return NULL;

        }

        folder_id = folder_get_identifier(item->folder);

        id = g_strconcat(folder_id, "/", item->path, NULL);

        g_free(folder_id);

        return id;

}

FolderItem *folder_find_item_from_identifier(const gchar *identifier)

{

        Folder *folder;

        gpointer d[2];

        gchar *str;

        gchar *p;

        gchar *name;

        gchar *path;

        FolderType type;

        g_return_val_if_fail(identifier != NULL, NULL);

        if (*identifier != '#')

                return folder_find_item_from_path(identifier);

        Xstrdup_a(str, identifier, return NULL);

        p = strchr(str, '/');

        if (!p)

                return folder_find_item_from_path(identifier);

        *p = '\0';

        p++;

        type = folder_get_type_from_string(str);

        if (type == F_UNKNOWN)

                return folder_find_item_from_path(identifier);

        name = p;

        p = strchr(p, '/');

        if (p) {

                *p = '\0';

                p++;

        }

        folder = folder_find_from_name(name, type);

        if (!folder)

                return folder_find_item_from_path(identifier);

        if (!p)

                return FOLDER_ITEM(folder->node->data);

        path = p;

        d[0] = (gpointer)path;

        d[1] = NULL;

        g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,

                        folder_item_find_func, d);

        return d[1];

}

FolderItem *folder_find_item_and_num_from_id(const gchar *identifier, gint *num)

{

        gchar *id;

        gchar *msg;

        FolderItem *item;

        g_return_val_if_fail(identifier != NULL, NULL);

        id = g_path_get_dirname(identifier);

        msg = g_path_get_basename(identifier);

        item = folder_find_item_from_identifier(id);

        *num = to_number(msg);

        g_free(msg);

        g_free(id);

        return item;

}

Folder *folder_get_default_folder(void)

{

        return folder_list ? FOLDER(folder_list->data) : NULL;

}

FolderItem *folder_get_default_inbox(void)

{

        Folder *folder;

        if (!folder_list) return NULL;

        folder = FOLDER(folder_list->data);

        g_return_val_if_fail(folder != NULL, NULL);

        return folder->inbox;

}

FolderItem *folder_get_default_outbox(void)

{

        Folder *folder;

        if (!folder_list) return NULL;

        folder = FOLDER(folder_list->data);

        g_return_val_if_fail(folder != NULL, NULL);

        return folder->outbox;

}

FolderItem *folder_get_default_draft(void)

{

        Folder *folder;

        if (!folder_list) return NULL;

        folder = FOLDER(folder_list->data);

        g_return_val_if_fail(folder != NULL, NULL);

        return folder->draft;

}

FolderItem *folder_get_default_queue(void)

{

        Folder *folder;

        if (!folder_list) return NULL;

        folder = FOLDER(folder_list->data);

        g_return_val_if_fail(folder != NULL, NULL);

        return folder->queue;

}

FolderItem *folder_get_default_trash(void)

{

        Folder *folder;

        if (!folder_list) return NULL;

        folder = FOLDER(folder_list->data);

        g_return_val_if_fail(folder != NULL, NULL);

        return folder->trash;

}

#define CREATE_FOLDER_IF_NOT_EXIST(member, dir, type)        \

{                                                        \

        if (!folder->member) {                                \

                item = folder_item_new(dir, dir);        \

                item->stype = type;                        \

                folder_item_append(rootitem, item);        \

                folder->member = item;                        \

        }                                                \

}

void folder_set_missing_folders(void)

{

        Folder *folder;

        FolderItem *rootitem;

        FolderItem *item;

        GList *list;

        for (list = folder_list; list != NULL; list = list->next) {

                folder = list->data;

                if (FOLDER_TYPE(folder) != F_MH) continue;

                rootitem = FOLDER_ITEM(folder->node->data);

                g_return_if_fail(rootitem != NULL);

                if (folder->inbox && folder->outbox && folder->draft &&

                    folder->queue && folder->trash)

                        continue;

                if (folder_create_tree(folder) < 0) {

                        g_warning("%s: can't create the folder tree.\n",

                                  LOCAL_FOLDER(folder)->rootpath);

                        continue;

                }

                CREATE_FOLDER_IF_NOT_EXIST(inbox,  INBOX_DIR,  F_INBOX);

                CREATE_FOLDER_IF_NOT_EXIST(outbox, OUTBOX_DIR, F_OUTBOX);

                CREATE_FOLDER_IF_NOT_EXIST(draft,  DRAFT_DIR,  F_DRAFT);

                CREATE_FOLDER_IF_NOT_EXIST(queue,  QUEUE_DIR,  F_QUEUE);

                CREATE_FOLDER_IF_NOT_EXIST(trash,  TRASH_DIR,  F_TRASH);

                /* CREATE_FOLDER_IF_NOT_EXIST(junk,   JUNK_DIR,  F_JUNK); */

        }

}

static gboolean folder_unref_account_func(GNode *node, gpointer data)

{

        FolderItem *item = node->data;

        PrefsAccount *account = data;

        if (item->account == account)

                item->account = NULL;

        return FALSE;

}

void folder_unref_account_all(PrefsAccount *account)

{

        Folder *folder;

        GList *list;

        if (!account) return;

        for (list = folder_list; list != NULL; list = list->next) {

                folder = list->data;

                if (folder->account == account)

                        folder->account = NULL;

                g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,

                                folder_unref_account_func, account);

        }

}

#undef CREATE_FOLDER_IF_NOT_EXIST

gchar *folder_get_path(Folder *folder)

{

        gchar *path;

        g_return_val_if_fail(folder != NULL, NULL);

        if (FOLDER_TYPE(folder) == F_MH) {

                path = g_filename_from_utf8(LOCAL_FOLDER(folder)->rootpath,

                                            -1, NULL, NULL, NULL);

                if (!path) {

                        g_warning("folder_get_path: faild to convert character set\n");

                        path = g_strdup(LOCAL_FOLDER(folder)->rootpath);

                }

                if (!g_path_is_absolute(path)) {

                        gchar *path_;

                        path_ = g_strconcat(get_mail_base_dir(),

                                            G_DIR_SEPARATOR_S, path, NULL);

                        g_free(path);

                        path = path_;

                }

        } else if (FOLDER_TYPE(folder) == F_IMAP) {

                gchar *uid;

                g_return_val_if_fail(folder->account != NULL, NULL);

                uid = uriencode_for_filename(folder->account->userid);

                path = g_strconcat(get_imap_cache_dir(),

                                   G_DIR_SEPARATOR_S,

                                   folder->account->recv_server,

                                   G_DIR_SEPARATOR_S, uid, NULL);

                g_free(uid);

        } else if (FOLDER_TYPE(folder) == F_NEWS) {

                g_return_val_if_fail(folder->account != NULL, NULL);

                path = g_strconcat(get_news_cache_dir(),

                                   G_DIR_SEPARATOR_S,

                                   folder->account->nntp_server,

                                   NULL);

        } else

                path = NULL;

        return path;

}

gchar *folder_item_get_path(FolderItem *item)

{

        gchar *folder_path;

        gchar *item_path = NULL, *path;

        g_return_val_if_fail(item != NULL, NULL);

        folder_path = folder_get_path(item->folder);

        g_return_val_if_fail(folder_path != NULL, NULL);

        if (item->path) {

                item_path = g_filename_from_utf8(item->path, -1,

                                                 NULL, NULL, NULL);

                if (!item_path) {

                        g_warning("folder_item_get_path: faild to convert character set\n");

                        item_path = g_strdup(item->path);

                }

#ifdef G_OS_WIN32

                subst_char(item_path, '/', G_DIR_SEPARATOR);

#endif

        }

        if (item_path)

                path = g_strconcat(folder_path, G_DIR_SEPARATOR_S, item_path,

                                   NULL);

        else

                path = g_strdup(folder_path);

        g_free(item_path);

        g_free(folder_path);

        return path;

}

gint folder_item_scan(FolderItem *item)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, -1);

        folder = item->folder;

        return folder->klass->scan(folder, item);

}

static void folder_item_scan_foreach_func(gpointer key, gpointer val,

                                          gpointer data)

{

        folder_item_scan(FOLDER_ITEM(key));

}

void folder_item_scan_foreach(GHashTable *table)

{

        g_hash_table_foreach(table, folder_item_scan_foreach_func, NULL);

}

GSList *folder_item_get_msg_list(FolderItem *item, gboolean use_cache)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, NULL);

        folder = item->folder;

        if (item->stype == F_VIRTUAL)

                return virtual_get_class()->get_msg_list(folder, item,

                                                         use_cache);

        return folder->klass->get_msg_list(folder, item, use_cache);

}

GSList *folder_item_get_uncached_msg_list(FolderItem *item)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, NULL);

        g_return_val_if_fail(item->folder->klass->get_uncached_msg_list != NULL,

                             NULL);

        folder = item->folder;

        if (item->stype == F_VIRTUAL)

                return NULL;

        return folder->klass->get_uncached_msg_list(folder, item);

}

gchar *folder_item_fetch_msg(FolderItem *item, gint num)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, NULL);

        folder = item->folder;

        return folder->klass->fetch_msg(folder, item, num);

}

gint folder_item_fetch_all_msg(FolderItem *item)

{

        Folder *folder;

        GSList *mlist;

        GSList *cur;

        gint num = 0;

        gint ret = 0;

        g_return_val_if_fail(item != NULL, -1);

        debug_print("fetching all messages in %s ...\n", item->path);

        folder = item->folder;

        if (folder->ui_func)

                folder->ui_func(folder, item, folder->ui_func_data ?

                                folder->ui_func_data : GINT_TO_POINTER(num));

        mlist = folder_item_get_msg_list(item, TRUE);

        for (cur = mlist; cur != NULL; cur = cur->next) {

                MsgInfo *msginfo = (MsgInfo *)cur->data;

                gchar *msg;

                num++;

                if (folder->ui_func)

                        folder->ui_func(folder, item,

                                        folder->ui_func_data ?

                                        folder->ui_func_data :

                                        GINT_TO_POINTER(num));

                msg = folder_item_fetch_msg(item, msginfo->msgnum);

                if (!msg) {

                        g_warning("Can't fetch message %d. Aborting.\n",

                                  msginfo->msgnum);

                        ret = -1;

                        break;

                }

                g_free(msg);

        }

        procmsg_msg_list_free(mlist);

        return ret;

}

MsgInfo *folder_item_get_msginfo(FolderItem *item, gint num)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, NULL);

        folder = item->folder;

        return folder->klass->get_msginfo(folder, item, num);

}

gint folder_item_add_msg(FolderItem *dest, const gchar *file, MsgFlags *flags,

                         gboolean remove_source)

{

        Folder *folder;

        g_return_val_if_fail(dest != NULL, -1);

        g_return_val_if_fail(file != NULL, -1);

        g_return_val_if_fail(dest->folder->klass->add_msg != NULL, -1);

        folder = dest->folder;

        return folder->klass->add_msg(folder, dest, file, flags, remove_source);

}

gint folder_item_add_msgs(FolderItem *dest, GSList *file_list,

                          gboolean remove_source, gint *first)

{

        Folder *folder;

        g_return_val_if_fail(dest != NULL, -1);

        g_return_val_if_fail(file_list != NULL, -1);

        g_return_val_if_fail(dest->folder->klass->add_msgs != NULL, -1);

        folder = dest->folder;

        return folder->klass->add_msgs(folder, dest, file_list, remove_source,

                                       first);

}

gint folder_item_move_msg(FolderItem *dest, MsgInfo *msginfo)

{

        Folder *folder;

        g_return_val_if_fail(dest != NULL, -1);

        g_return_val_if_fail(msginfo != NULL, -1);

        g_return_val_if_fail(dest->folder->klass->move_msg != NULL, -1);

        folder = dest->folder;

        return folder->klass->move_msg(folder, dest, msginfo);

}

gint folder_item_move_msgs(FolderItem *dest, GSList *msglist)

{

        Folder *folder;

        g_return_val_if_fail(dest != NULL, -1);

        g_return_val_if_fail(msglist != NULL, -1);

        g_return_val_if_fail(dest->folder->klass->move_msgs != NULL, -1);

        folder = dest->folder;

        return folder->klass->move_msgs(folder, dest, msglist);

}

gint folder_item_copy_msg(FolderItem *dest, MsgInfo *msginfo)

{

        Folder *folder;

        g_return_val_if_fail(dest != NULL, -1);

        g_return_val_if_fail(msginfo != NULL, -1);

        g_return_val_if_fail(dest->folder->klass->copy_msg != NULL, -1);

        folder = dest->folder;

        return folder->klass->copy_msg(folder, dest, msginfo);

}

gint folder_item_copy_msgs(FolderItem *dest, GSList *msglist)

{

        Folder *folder;

        g_return_val_if_fail(dest != NULL, -1);

        g_return_val_if_fail(msglist != NULL, -1);

        g_return_val_if_fail(dest->folder->klass->copy_msgs != NULL, -1);

        folder = dest->folder;

        return folder->klass->copy_msgs(folder, dest, msglist);

}

gint folder_item_remove_msg(FolderItem *item, MsgInfo *msginfo)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, -1);

        g_return_val_if_fail(item->folder->klass->remove_msg != NULL, -1);

        folder = item->folder;

        return folder->klass->remove_msg(folder, item, msginfo);

}

gint folder_item_remove_msgs(FolderItem *item, GSList *msglist)

{

        Folder *folder;

        gint ret = 0;

        g_return_val_if_fail(item != NULL, -1);

        folder = item->folder;

        if (folder->klass->remove_msgs) {

                return folder->klass->remove_msgs(folder, item, msglist);

        }

        while (msglist != NULL) {

                MsgInfo *msginfo = (MsgInfo *)msglist->data;

                ret = folder_item_remove_msg(item, msginfo);

                if (ret != 0) break;

                msglist = msglist->next;

        }

        return ret;

}

gint folder_item_remove_all_msg(FolderItem *item)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, -1);

        g_return_val_if_fail(item->folder->klass->remove_all_msg != NULL, -1);

        folder = item->folder;

        return folder->klass->remove_all_msg(folder, item);

}

gboolean folder_item_is_msg_changed(FolderItem *item, MsgInfo *msginfo)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, FALSE);

        g_return_val_if_fail(item->folder->klass->is_msg_changed != NULL,

                             FALSE);

        folder = item->folder;

        return folder->klass->is_msg_changed(folder, item, msginfo);

}

gint folder_item_close(FolderItem *item)

{

        Folder *folder;

        g_return_val_if_fail(item != NULL, -1);

        item->opened = FALSE;

        folder = item->folder;

        return folder->klass->close(folder, item);

}

gchar *folder_item_get_cache_file(FolderItem *item)

{

        gchar *path;

        gchar *file;

        g_return_val_if_fail(item != NULL, NULL);

        g_return_val_if_fail(item->path != NULL, NULL);

        path = folder_item_get_path(item);

        g_return_val_if_fail(path != NULL, NULL);

        if (!is_dir_exist(path))

                make_dir_hier(path);

        file = g_strconcat(path, G_DIR_SEPARATOR_S, CACHE_FILE, NULL);

        g_free(path);

        return file;

}

gchar *folder_item_get_mark_file(FolderItem *item)

{

        gchar *path;

        gchar *file;

        g_return_val_if_fail(item != NULL, NULL);

        g_return_val_if_fail(item->path != NULL, NULL);

        path = folder_item_get_path(item);

        g_return_val_if_fail(path != NULL, NULL);

        if (!is_dir_exist(path))

                make_dir_hier(path);

        file = g_strconcat(path, G_DIR_SEPARATOR_S, MARK_FILE, NULL);

        g_free(path);

        return file;

}

static gboolean folder_build_tree(GNode *node, gpointer data)

{

        Folder *folder = FOLDER(data);

        FolderItem *item;

        XMLNode *xmlnode;

        GList *list;

        SpecialFolderItemType stype = F_NORMAL;

        const gchar *name = NULL;

        const gchar *path = NULL;

        PrefsAccount *account = NULL;

        gboolean no_sub = FALSE, no_select = FALSE, collapsed = FALSE,

                 threaded = TRUE, ac_apply_sub = FALSE;

        FolderSortKey sort_key = SORT_BY_NONE;

        FolderSortType sort_type = SORT_ASCENDING;

        gboolean qsearch_cond_type = 0;

        gint new = 0, unread = 0, total = 0;

        time_t mtime = 0;

        gboolean use_auto_to_on_reply = FALSE;

        gchar *auto_to = NULL, *auto_cc = NULL, *auto_bcc = NULL,

              *auto_replyto = NULL;

        gboolean trim_summary_subject = FALSE, trim_compose_subject = FALSE;

        g_return_val_if_fail(node->data != NULL, FALSE);

        if (!node->parent) return FALSE;

        xmlnode = node->data;

        if (strcmp2(xmlnode->tag->tag, "folderitem") != 0) {

                g_warning("tag name != \"folderitem\"\n");

                return FALSE;

        }

        list = xmlnode->tag->attr;

        for (; list != NULL; list = list->next) {

                XMLAttr *attr = list->data;

                if (!attr || !attr->name || !attr->value) continue;

                if (!strcmp(attr->name, "type")) {

                        if (!g_ascii_strcasecmp(attr->value, "normal"))

                                stype = F_NORMAL;

                        else if (!g_ascii_strcasecmp(attr->value, "inbox"))

                                stype = F_INBOX;

                        else if (!g_ascii_strcasecmp(attr->value, "outbox"))

                                stype = F_OUTBOX;

                        else if (!g_ascii_strcasecmp(attr->value, "draft"))

                                stype = F_DRAFT;

                        else if (!g_ascii_strcasecmp(attr->value, "queue"))

                                stype = F_QUEUE;

                        else if (!g_ascii_strcasecmp(attr->value, "trash"))

                                stype = F_TRASH;

#if 0

                        else if (!g_ascii_strcasecmp(attr->value, "junk"))

                                stype = F_JUNK;

#endif

                        else if (!g_ascii_strcasecmp(attr->value, "virtual"))

                                stype = F_VIRTUAL;

                } else if (!strcmp(attr->name, "name"))

                        name = attr->value;

                else if (!strcmp(attr->name, "path")) {

#ifdef G_OS_WIN32

                        subst_char(attr->value, G_DIR_SEPARATOR, '/');

#endif

                        path = attr->value;

                } else if (!strcmp(attr->name, "mtime"))

                        mtime = strtoul(attr->value, NULL, 10);

                else if (!strcmp(attr->name, "new"))

                        new = atoi(attr->value);

                else if (!strcmp(attr->name, "unread"))

                        unread = atoi(attr->value);

                else if (!strcmp(attr->name, "total"))

                        total = atoi(attr->value);

                else if (!strcmp(attr->name, "no_sub"))

                        no_sub = *attr->value == '1' ? TRUE : FALSE;

                else if (!strcmp(attr->name, "no_select"))

                        no_select = *attr->value == '1' ? TRUE : FALSE;

                else if (!strcmp(attr->name, "collapsed"))

                        collapsed = *attr->value == '1' ? TRUE : FALSE;

                else if (!strcmp(attr->name, "threaded"))

                        threaded =  *attr->value == '1' ? TRUE : FALSE;

                else if (!strcmp(attr->name, "sort_key")) {

                        if (!strcmp(attr->value, "none"))

                                sort_key = SORT_BY_NONE;

                        else if (!strcmp(attr->value, "number"))

                                sort_key = SORT_BY_NUMBER;

                        else if (!strcmp(attr->value, "size"))

                                sort_key = SORT_BY_SIZE;

                        else if (!strcmp(attr->value, "date"))

                                sort_key = SORT_BY_DATE;

                        else if (!strcmp(attr->value, "thread-date"))

                                sort_key = SORT_BY_TDATE;

                        else if (!strcmp(attr->value, "from"))

                                sort_key = SORT_BY_FROM;

                        else if (!strcmp(attr->value, "subject"))

                                sort_key = SORT_BY_SUBJECT;

                        else if (!strcmp(attr->value, "score"))

                                sort_key = SORT_BY_SCORE;

                        else if (!strcmp(attr->value, "label"))

                                sort_key = SORT_BY_LABEL;

                        else if (!strcmp(attr->value, "mark"))