2005-12-30 [colin] 1.9.100cvs115
[claws.git] / src / mh.c
index 140d35dac1313e8c01243c3be15c5ec251ccf9c5..092d5b5421a19c96567fe6693fd8b19a1c83295b 100644 (file)
--- a/src/mh.c
+++ b/src/mh.c
@@ -1,6 +1,6 @@
 /*
  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2003 Hiroyuki Yamamoto
+ * Copyright (C) 1999-2005 Hiroyuki Yamamoto
  *
  * 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
@@ -14,7 +14,7 @@
  *
  * 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #ifdef HAVE_CONFIG_H
@@ -24,6 +24,7 @@
 #include "defs.h"
 
 #include <glib.h>
+#include <glib/gi18n.h>
 #include <dirent.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #  include <sys/time.h>
 #endif
 
-#include "intl.h"
 #include "folder.h"
 #include "mh.h"
 #include "procmsg.h"
 #include "procheader.h"
 #include "utils.h"
+#include "codeconv.h"
+
+/* Define possible missing constants for Windows. */
+#ifdef G_OS_WIN32
+# ifndef S_IRGRP
+# define S_IRGRP 0
+# define S_IWGRP 0
+# endif
+# ifndef S_IROTH
+# define S_IROTH 0
+# define S_IWOTH 0
+# endif
+#endif
 
-static void mh_folder_init(Folder * folder,
-                          const gchar * name, const gchar * path);
-
-static Folder *mh_folder_new(const gchar * name, const gchar * path);
-static void mh_folder_destroy(Folder * folder);
-static gchar *mh_fetch_msg(Folder * folder, FolderItem * item, gint num);
-static MsgInfo *mh_get_msginfo(Folder * folder,
-                              FolderItem * item, gint num);
-static gint mh_add_msg(Folder * folder,
-                      FolderItem * dest,
-                      const gchar * file,
-                      MsgFlags * flags);
-static gint mh_add_msgs(Folder * folder,
-                FolderItem * dest, GSList * file_list, GRelation *relation);
-static gint mh_copy_msg(Folder * folder,
-                       FolderItem * dest, MsgInfo * msginfo);
-static gint mh_remove_msg(Folder * folder, FolderItem * item, gint num);
-static gint mh_remove_all_msg(Folder * folder, FolderItem * item);
-static gboolean mh_is_msg_changed(Folder * folder,
-                                 FolderItem * item, MsgInfo * msginfo);
-
-static gint mh_get_num_list(Folder * folder,
-                           FolderItem * item, GSList ** list, gboolean *old_uids_valid);
-static void mh_scan_tree(Folder * folder);
-
-static gint mh_create_tree(Folder * folder);
-static FolderItem *mh_create_folder(Folder * folder,
-                                   FolderItem * parent,
-                                   const gchar * name);
-static gint mh_rename_folder(Folder * folder,
-                            FolderItem * item, const gchar * name);
-static gint mh_remove_folder(Folder * folder, FolderItem * item);
-
-static gchar *mh_get_new_msg_filename(FolderItem * dest);
-
-static MsgInfo *mh_parse_msg(const gchar * file, FolderItem * item);
-static void mh_scan_tree_recursive(FolderItem * item);
-
-static gboolean mh_rename_folder_func(GNode * node, gpointer data);
-static gchar *mh_item_get_path(Folder *folder, FolderItem *item);
-
-FolderClass mh_class =
-{
-       F_MH,
-       "mh",
-       "MH",
-
-       /* Folder functions */
-       mh_folder_new,
-       mh_folder_destroy,
-       mh_scan_tree,
-       mh_create_tree,
-
-       /* FolderItem functions */
-       NULL,
-       NULL,
-       mh_item_get_path,
-       mh_create_folder,
-       mh_rename_folder,
-       mh_remove_folder,
-       NULL,
-       mh_get_num_list,
-       NULL,
-       NULL,
-       NULL,
-       NULL,
-       
-       /* Message functions */
-       mh_get_msginfo,
-       NULL,
-       mh_fetch_msg,
-       mh_add_msg,
-       mh_add_msgs,
-       mh_copy_msg,
-       NULL,
-       mh_remove_msg,
-       mh_remove_all_msg,
-       mh_is_msg_changed,
-       NULL,
-};
+
+static void    mh_folder_init          (Folder         *folder,
+                                        const gchar    *name,
+                                        const gchar    *path);
+
+static Folder  *mh_folder_new          (const gchar    *name,
+                                        const gchar    *path);
+static void     mh_folder_destroy      (Folder         *folder);
+static gchar   *mh_fetch_msg           (Folder         *folder,
+                                        FolderItem     *item,
+                                        gint            num);
+static MsgInfo *mh_get_msginfo         (Folder         *folder,
+                                        FolderItem     *item,
+                                        gint            num);
+static gint     mh_add_msg             (Folder         *folder,
+                                        FolderItem     *dest,
+                                        const gchar    *file,
+                                        MsgFlags       *flags);
+static gint     mh_add_msgs            (Folder         *folder,
+                                        FolderItem     *dest,
+                                        GSList         *file_list,
+                                        GRelation      *relation);
+static gint     mh_copy_msg            (Folder         *folder,
+                                        FolderItem     *dest,
+                                        MsgInfo        *msginfo);
+static gint    mh_copy_msgs            (Folder         *folder, 
+                                        FolderItem     *dest, 
+                                        MsgInfoList    *msglist, 
+                                        GRelation      *relation);
+static gint     mh_remove_msg          (Folder         *folder,
+                                        FolderItem     *item,
+                                        gint            num);
+static gint     mh_remove_all_msg      (Folder         *folder,
+                                        FolderItem     *item);
+static gboolean mh_is_msg_changed      (Folder         *folder,
+                                        FolderItem     *item,
+                                        MsgInfo        *msginfo);
+
+static gint    mh_get_num_list         (Folder         *folder,
+                                        FolderItem     *item, 
+                                        GSList         **list, 
+                                        gboolean       *old_uids_valid);
+static gint    mh_scan_tree            (Folder         *folder);
+
+static gint    mh_create_tree          (Folder         *folder);
+static FolderItem *mh_create_folder    (Folder         *folder,
+                                        FolderItem     *parent,
+                                        const gchar    *name);
+static gint    mh_rename_folder                (Folder         *folder,
+                                        FolderItem     *item,
+                                        const gchar    *name);
+static gint    mh_remove_folder                (Folder         *folder,
+                                        FolderItem     *item);
+
+static gchar   *mh_get_new_msg_filename                (FolderItem     *dest);
+
+static MsgInfo *mh_parse_msg                   (const gchar    *file,
+                                                FolderItem     *item);
+static void    mh_remove_missing_folder_items  (Folder         *folder);
+static gchar   *mh_filename_from_utf8          (const gchar    *path);
+static gchar   *mh_filename_to_utf8            (const gchar    *path);
+static void    mh_scan_tree_recursive          (FolderItem     *item);
+
+static gboolean mh_rename_folder_func          (GNode          *node,
+                                                gpointer        data);
+static gchar   *mh_item_get_path               (Folder *folder, 
+                                                FolderItem *item);
+
+static gboolean mh_scan_required       (Folder         *folder,
+                                        FolderItem     *item);
+
+static FolderClass mh_class;
 
 FolderClass *mh_get_class(void)
 {
+       if (mh_class.idstr == NULL) {
+               mh_class.type = F_MH;
+               mh_class.idstr = "mh";
+               mh_class.uistr = "MH";
+               
+               /* Folder functions */
+               mh_class.new_folder = mh_folder_new;
+               mh_class.destroy_folder = mh_folder_destroy;
+               mh_class.set_xml = folder_local_set_xml;
+               mh_class.get_xml = folder_local_get_xml;
+               mh_class.scan_tree = mh_scan_tree;
+               mh_class.create_tree = mh_create_tree;
+
+               /* FolderItem functions */
+               mh_class.item_get_path = mh_item_get_path;
+               mh_class.create_folder = mh_create_folder;
+               mh_class.rename_folder = mh_rename_folder;
+               mh_class.remove_folder = mh_remove_folder;
+               mh_class.get_num_list = mh_get_num_list;
+               mh_class.scan_required = mh_scan_required;
+               
+               /* Message functions */
+               mh_class.get_msginfo = mh_get_msginfo;
+               mh_class.fetch_msg = mh_fetch_msg;
+               mh_class.add_msg = mh_add_msg;
+               mh_class.add_msgs = mh_add_msgs;
+               mh_class.copy_msg = mh_copy_msg;
+               mh_class.copy_msgs = mh_copy_msgs;
+               mh_class.remove_msg = mh_remove_msg;
+               mh_class.remove_all_msg = mh_remove_all_msg;
+               mh_class.is_msg_changed = mh_is_msg_changed;
+       }
+
        return &mh_class;
 }
 
-Folder *mh_folder_new(const gchar *name, const gchar *path)
+static Folder *mh_folder_new(const gchar *name, const gchar *path)
 {
        Folder *folder;
 
@@ -151,12 +189,43 @@ static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
 
 }
 
+gboolean mh_scan_required(Folder *folder, FolderItem *item)
+{
+       gchar *path;
+       struct stat s;
+
+       path = folder_item_get_path(item);
+       g_return_val_if_fail(path != NULL, FALSE);
+
+       if (stat(path, &s) < 0) {
+               FILE_OP_ERROR(path, "stat");
+               g_free(path);
+               return FALSE;
+       }
+
+       if ((s.st_mtime > item->mtime) &&
+               (s.st_mtime - 3600 != item->mtime)) {
+               debug_print("MH scan required, folder updated: %s (%ld > %ld)\n",
+                           path,
+                           (long int) s.st_mtime,
+                           (long int) item->mtime);
+               g_free(path);
+               return TRUE;
+       }
+
+       debug_print("MH scan not required: %s (%ld <= %ld)\n",
+                   path,
+                   (long int) s.st_mtime,
+                   (long int) item->mtime);
+       g_free(path);
+       return FALSE;
+}
+
 void mh_get_last_num(Folder *folder, FolderItem *item)
 {
        gchar *path;
        DIR *dp;
        struct dirent *d;
-       struct stat s;
        gint max = 0;
        gint num;
 
@@ -178,9 +247,8 @@ void mh_get_last_num(Folder *folder, FolderItem *item)
        }
 
        while ((d = readdir(dp)) != NULL) {
-               if ((num = to_number(d->d_name)) >= 0 &&
-                   stat(d->d_name, &s) == 0 &&
-                   S_ISREG(s.st_mode)) {
+               if ((num = to_number(d->d_name)) > 0 &&
+                   dirent_is_regular_file(d)) {
                        if (max < num)
                                max = num;
                }
@@ -197,12 +265,11 @@ gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *
        gchar *path;
        DIR *dp;
        struct dirent *d;
-       struct stat s;
        gint num, nummsgs = 0;
 
        g_return_val_if_fail(item != NULL, -1);
 
-       debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
+       debug_print("mh_get_num_list(): Scanning %s ...\n", item->path);
 
        *old_uids_valid = TRUE;
 
@@ -220,19 +287,18 @@ gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list, gboolean *
        }
 
        while ((d = readdir(dp)) != NULL) {
-               if ((num = to_number(d->d_name)) >= 0 &&
-                   stat(d->d_name, &s) == 0 &&
-                   S_ISREG(s.st_mode)) {
+               if ((num = to_number(d->d_name)) > 0) {
                        *list = g_slist_prepend(*list, GINT_TO_POINTER(num));
-                   nummsgs++;
+                       nummsgs++;
                }
        }
        closedir(dp);
 
+       item->mtime = time(NULL);
        return nummsgs;
 }
 
-gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
+static gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 {
        gchar *path;
        gchar *file;
@@ -242,16 +308,17 @@ gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
 
        path = folder_item_get_path(item);
        file = g_strconcat(path, G_DIR_SEPARATOR_S, itos(num), NULL);
-       g_free(path);
+
        if (!is_file_exist(file)) {
                g_free(file);
+               g_free(path);
                return NULL;
        }
-
+       g_free(path);
        return file;
 }
 
-MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
+static MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
 {
        MsgInfo *msginfo;
        gchar *file;
@@ -271,7 +338,7 @@ MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
        return msginfo;
 }
 
-gchar *mh_get_new_msg_filename(FolderItem *dest)
+static gchar *mh_get_new_msg_filename(FolderItem *dest)
 {
        gchar *destfile;
        gchar *destpath;
@@ -297,7 +364,7 @@ gchar *mh_get_new_msg_filename(FolderItem *dest)
        return destfile;
 }
 
-gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
+static gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
 {
        gint ret;
        GSList file_list;
@@ -315,7 +382,7 @@ gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *f
        return ret;
 } 
  
-gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list, 
+static gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list, 
                  GRelation *relation)
 { 
        gchar *destfile;
@@ -336,14 +403,19 @@ gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
                destfile = mh_get_new_msg_filename(dest);
                if (destfile == NULL) return -1;
 
+#ifdef G_OS_UNIX
                if (link(fileinfo->file, destfile) < 0) {
+#endif
                        if (copy_file(fileinfo->file, destfile, TRUE) < 0) {
                                g_warning(_("can't copy message %s to %s\n"),
                                          fileinfo->file, destfile);
                                g_free(destfile);
                                return -1;
                        }
+#ifdef G_OS_UNIX
                }
+#endif
+
                if (relation != NULL)
                        g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
                g_free(destfile);
@@ -353,14 +425,34 @@ gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
        return dest->last_num;
 }
 
-gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
+static gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
+{
+       GSList msglist;
+
+       g_return_val_if_fail(msginfo != NULL, -1);
+
+       msglist.data = msginfo;
+       msglist.next = NULL;
+
+       return mh_copy_msgs(folder, dest, &msglist, NULL);      
+}
+
+static gint mh_copy_msgs(Folder *folder, FolderItem *dest, MsgInfoList *msglist, 
+                        GRelation *relation)
 {
+       gboolean dest_need_scan = FALSE;
        gchar *srcfile;
        gchar *destfile;
        gint filemode = 0;
        FolderItemPrefs *prefs;
-
+       MsgInfo *msginfo = NULL;
+       gboolean remove_special_headers = FALSE;
+       MsgInfoList *cur = NULL;
        g_return_val_if_fail(dest != NULL, -1);
+       g_return_val_if_fail(msglist != NULL, -1);
+       
+       msginfo = (MsgInfo *)msglist->data;
+
        g_return_val_if_fail(msginfo != NULL, -1);
 
        if (msginfo->folder == dest) {
@@ -373,54 +465,75 @@ gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
                if (dest->last_num < 0) return -1;
        }
 
+       if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
+       && !folder_has_parent_of_type(dest, F_QUEUE)
+       && !folder_has_parent_of_type(dest, F_DRAFT)) {
+               /* as every msginfo comes from the same folder, it is supposed they
+                * will either match the preceding condition either all or none.
+                */
+               remove_special_headers = TRUE;
+       } else if (!(MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
+       && (folder_has_parent_of_type(dest, F_QUEUE)
+        || folder_has_parent_of_type(dest, F_DRAFT))) {
+               return -1;
+       } 
+
        prefs = dest->prefs;
 
-       srcfile = procmsg_get_message_file(msginfo);
-       destfile = mh_get_new_msg_filename(dest);
-       if (!destfile) {
-               g_free(srcfile);
-               return -1;
-       }
-       
-       debug_print("Copying message %s%c%d to %s ...\n",
-                   msginfo->folder->path, G_DIR_SEPARATOR,
-                   msginfo->msgnum, dest->path);
-       
+       for (cur = msglist; cur; cur = cur->next) {
+               msginfo = (MsgInfo *)cur->data;
+               if (!msginfo)
+                       continue;
+               srcfile = procmsg_get_message_file(msginfo);
+               destfile = mh_get_new_msg_filename(dest);
+               if (!destfile) {
+                       g_free(srcfile);
+                       continue;
+               }
 
-       if ((MSG_IS_QUEUED(msginfo->flags) || MSG_IS_DRAFT(msginfo->flags))
-       &&  dest->stype != F_QUEUE && dest->stype != F_DRAFT) {
-               if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
+               debug_print("Copying message %s%c%d to %s ...\n",
+                           msginfo->folder->path, G_DIR_SEPARATOR,
+                           msginfo->msgnum, dest->path);
+
+
+               if (remove_special_headers) {
+                       if (procmsg_remove_special_headers(srcfile, destfile) !=0) {
+                               g_free(srcfile);
+                               g_free(destfile);
+                               continue;
+                       }
+               } else if (copy_file(srcfile, destfile, TRUE) < 0) {
+                       FILE_OP_ERROR(srcfile, "copy");
                        g_free(srcfile);
                        g_free(destfile);
-                       return -1;
+                       continue;
+               }
+               if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
+                       if (chmod(destfile, prefs->folder_chmod) < 0)
+                               FILE_OP_ERROR(destfile, "chmod");
+
+                       /* for mark file */
+                       filemode = prefs->folder_chmod;
+                       if (filemode & S_IRGRP) filemode |= S_IWGRP;
+                       if (filemode & S_IROTH) filemode |= S_IWOTH;
                }
-       } else if (copy_file(srcfile, destfile, TRUE) < 0) {
-               FILE_OP_ERROR(srcfile, "copy");
+               if (relation)
+                       g_relation_insert(relation, msginfo, GINT_TO_POINTER(dest->last_num+1));
                g_free(srcfile);
                g_free(destfile);
-               return -1;
-       }
-
-
-       if (prefs && prefs->enable_folder_chmod && prefs->folder_chmod) {
-               if (chmod(destfile, prefs->folder_chmod) < 0)
-                       FILE_OP_ERROR(destfile, "chmod");
-
-               /* for mark file */
-               filemode = prefs->folder_chmod;
-               if (filemode & S_IRGRP) filemode |= S_IWGRP;
-               if (filemode & S_IROTH) filemode |= S_IWOTH;
+               dest->last_num++;
        }
 
-       g_free(srcfile);
-       g_free(destfile);
-       dest->last_num++;
+       dest_need_scan = mh_scan_required(dest->folder, dest);
+       if (!dest_need_scan)
+               dest->mtime = time(NULL);
 
        return dest->last_num;
 }
 
-gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
+static gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
 {
+       gboolean need_scan = FALSE;
        gchar *file;
 
        g_return_val_if_fail(item != NULL, -1);
@@ -428,17 +541,22 @@ gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
        file = mh_fetch_msg(folder, item, num);
        g_return_val_if_fail(file != NULL, -1);
 
-       if (unlink(file) < 0) {
+       need_scan = mh_scan_required(folder, item);
+
+       if (g_unlink(file) < 0) {
                FILE_OP_ERROR(file, "unlink");
                g_free(file);
                return -1;
        }
 
+       if (!need_scan)
+               item->mtime = time(NULL);
+
        g_free(file);
        return 0;
 }
 
-gint mh_remove_all_msg(Folder *folder, FolderItem *item)
+static gint mh_remove_all_msg(Folder *folder, FolderItem *item)
 {
        gchar *path;
        gint val;
@@ -453,38 +571,47 @@ gint mh_remove_all_msg(Folder *folder, FolderItem *item)
        return val;
 }
 
-gboolean mh_is_msg_changed(Folder *folder, FolderItem *item, MsgInfo *msginfo)
+static gboolean mh_is_msg_changed(Folder *folder, FolderItem *item,
+                                 MsgInfo *msginfo)
 {
        struct stat s;
 
-       if (stat(itos(msginfo->msgnum), &s) < 0 ||
-           msginfo->size  != s.st_size ||
-           msginfo->mtime != s.st_mtime)
+       if (g_stat(itos(msginfo->msgnum), &s) < 0 ||
+           msginfo->size  != s.st_size || (
+               (msginfo->mtime - s.st_mtime != 0) &&
+               (msginfo->mtime - s.st_mtime != 3600) &&
+               (msginfo->mtime - s.st_mtime != -3600)))
                return TRUE;
 
        return FALSE;
 }
 
-void mh_scan_tree(Folder *folder)
+static gint mh_scan_tree(Folder *folder)
 {
        FolderItem *item;
        gchar *rootpath;
 
-       g_return_if_fail(folder != NULL);
+       g_return_val_if_fail(folder != NULL, -1);
 
-       item = folder_item_new(folder, folder->name, NULL);
-       item->folder = folder;
-       folder->node = g_node_new(item);
+       if (!folder->node) {
+               item = folder_item_new(folder, folder->name, NULL);
+               item->folder = folder;
+               folder->node = item->node = g_node_new(item);
+       } else
+               item = FOLDER_ITEM(folder->node->data);
 
        rootpath = folder_item_get_path(item);
        if (change_dir(rootpath) < 0) {
                g_free(rootpath);
-               return;
+               return -1;
        }
        g_free(rootpath);
 
        mh_create_tree(folder);
+       mh_remove_missing_folder_items(folder);
        mh_scan_tree_recursive(item);
+
+       return 0;
 }
 
 #define MAKE_DIR_IF_NOT_EXIST(dir) \
@@ -500,13 +627,13 @@ void mh_scan_tree(Folder *folder)
        } \
 }
 
-gint mh_create_tree(Folder *folder)
+static gint mh_create_tree(Folder *folder)
 {
        gchar *rootpath;
 
        g_return_val_if_fail(folder != NULL, -1);
 
-       CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
+       CHDIR_RETURN_VAL_IF_FAIL(get_mail_base_dir(), -1);
        rootpath = LOCAL_FOLDER(folder)->rootpath;
        MAKE_DIR_IF_NOT_EXIST(rootpath);
        CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
@@ -521,17 +648,20 @@ gint mh_create_tree(Folder *folder)
 
 #undef MAKE_DIR_IF_NOT_EXIST
 
-gchar *mh_item_get_path(Folder *folder, FolderItem *item)
+static gchar *mh_item_get_path(Folder *folder, FolderItem *item)
 {
        gchar *folder_path, *path;
-
+       gchar *real_path;
        g_return_val_if_fail(folder != NULL, NULL);
        g_return_val_if_fail(item != NULL, NULL);
 
        folder_path = g_strdup(LOCAL_FOLDER(folder)->rootpath);
        g_return_val_if_fail(folder_path != NULL, NULL);
 
-        if (folder_path[0] == G_DIR_SEPARATOR) {
+        /* FIXME: [W32] The code below does not correctly merge
+           relative filenames; there should be a function to handle
+           this.  */
+        if ( !is_relative_filename (folder_path) ) {
                 if (item->path)
                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
                                            item->path, NULL);
@@ -547,14 +677,22 @@ gchar *mh_item_get_path(Folder *folder, FolderItem *item)
                                            folder_path, NULL);
         }
        g_free(folder_path);
+       real_path = mh_filename_from_utf8(path);
+       if (!is_dir_exist(real_path) && is_dir_exist(path)) {
+               /* mmh, older version did put utf8 filenames instead of
+                * the correct encoding */
+               rename(path, real_path);
+               folder_item_scan(item);
+       }
 
-       return path;
+       g_free(path);
+       return real_path;
 }
 
-FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
-                            const gchar *name)
+static FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
+                                   const gchar *name)
 {
-       gchar *path;
+       gchar *path, *real_name;
        gchar *fullpath;
        FolderItem *new_item;
        gchar *mh_sequences_filename;
@@ -569,7 +707,9 @@ FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
                if (make_dir_hier(path) != 0)
                        return NULL;
                
-       fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, name, NULL);
+       real_name = mh_filename_from_utf8(name);
+       fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, real_name, NULL);
+       g_free(real_name);
        g_free(path);
 
        if (make_dir(fullpath) < 0) {
@@ -592,7 +732,7 @@ FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
        path = folder_item_get_path(new_item);
        mh_sequences_filename = g_strconcat(path, G_DIR_SEPARATOR_S,
                                            ".mh_sequences", NULL);
-       if ((mh_sequences_file = fopen(mh_sequences_filename, "a+b")) != NULL) {
+       if ((mh_sequences_file = g_fopen(mh_sequences_filename, "a+b")) != NULL) {
                fclose(mh_sequences_file);
        }
        g_free(mh_sequences_filename);
@@ -601,12 +741,13 @@ FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
        return new_item;
 }
 
-gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
+static gint mh_rename_folder(Folder *folder, FolderItem *item,
+                            const gchar *name)
 {
+       gchar *real_name;
        gchar *oldpath;
        gchar *dirname;
-       gchar *newpath;
-       GNode *node;
+       gchar *newpath, *utf8newpath;
        gchar *paths[2];
 
        g_return_val_if_fail(folder != NULL, -1);
@@ -618,11 +759,12 @@ gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
        if (!is_dir_exist(oldpath))
                make_dir_hier(oldpath);
 
-       dirname = g_dirname(oldpath);
-       newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
-       g_free(dirname);
+       dirname = g_path_get_dirname(oldpath);
+       real_name = mh_filename_from_utf8(name);
+       newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, real_name, NULL);
+       g_free(real_name);
 
-       if (rename(oldpath, newpath) < 0) {
+       if (g_rename(oldpath, newpath) < 0) {
                FILE_OP_ERROR(oldpath, "rename");
                g_free(oldpath);
                g_free(newpath);
@@ -633,20 +775,19 @@ gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
        g_free(newpath);
 
        if (strchr(item->path, G_DIR_SEPARATOR) != NULL) {
-               dirname = g_dirname(item->path);
-               newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
+               dirname = g_path_get_dirname(item->path);
+               utf8newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S,
+                                         name, NULL);
                g_free(dirname);
        } else
-               newpath = g_strdup(name);
+               utf8newpath = g_strdup(name);
 
        g_free(item->name);
        item->name = g_strdup(name);
 
-       node = g_node_find(item->folder->node, G_PRE_ORDER, G_TRAVERSE_ALL,
-                          item);
        paths[0] = g_strdup(item->path);
-       paths[1] = newpath;
-       g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
+       paths[1] = utf8newpath;
+       g_node_traverse(item->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
                        mh_rename_folder_func, paths);
 
        g_free(paths[0]);
@@ -654,7 +795,7 @@ gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
        return 0;
 }
 
-gint mh_remove_folder(Folder *folder, FolderItem *item)
+static gint mh_remove_folder(Folder *folder, FolderItem *item)
 {
        gchar *path;
 
@@ -676,19 +817,18 @@ gint mh_remove_folder(Folder *folder, FolderItem *item)
 
 static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
 {
-       struct stat s;
        MsgInfo *msginfo;
        MsgFlags flags;
 
-       flags.perm_flags = MSG_NEW|MSG_UNREAD;
-       flags.tmp_flags = 0;
-
        g_return_val_if_fail(item != NULL, NULL);
        g_return_val_if_fail(file != NULL, NULL);
 
-       if (item->stype == F_QUEUE) {
+       flags.perm_flags = MSG_NEW|MSG_UNREAD;
+       flags.tmp_flags = 0;
+
+       if (folder_has_parent_of_type(item, F_QUEUE)) {
                MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
-       } else if (item->stype == F_DRAFT) {
+       } else if (folder_has_parent_of_type(item, F_DRAFT)) {
                MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
        }
 
@@ -698,15 +838,6 @@ static MsgInfo *mh_parse_msg(const gchar *file, FolderItem *item)
        msginfo->msgnum = atoi(file);
        msginfo->folder = item;
 
-       if (stat(file, &s) < 0) {
-               FILE_OP_ERROR(file, "stat");
-               msginfo->size = 0;
-               msginfo->mtime = 0;
-       } else {
-               msginfo->size = s.st_size;
-               msginfo->mtime = s.st_mtime;
-       }
-
        return msginfo;
 }
 
@@ -736,82 +867,171 @@ static gboolean mh_is_maildir(const gchar *path)
 }
 #endif
 
+static gboolean mh_remove_missing_folder_items_func(GNode *node, gpointer data)
+{
+       FolderItem *item;
+       gchar *path;
+
+       g_return_val_if_fail(node->data != NULL, FALSE);
+
+       if (G_NODE_IS_ROOT(node))
+               return FALSE;
+
+       item = FOLDER_ITEM(node->data);
+
+       path = folder_item_get_path(item);
+       if (!is_dir_exist(path)) {
+               debug_print("folder '%s' not found. removing...\n", path);
+               folder_item_remove(item);
+       }
+       g_free(path);
+
+       return FALSE;
+}
+
+static void mh_remove_missing_folder_items(Folder *folder)
+{
+       g_return_if_fail(folder != NULL);
+
+       debug_print("searching missing folders...\n");
+
+       g_node_traverse(folder->node, G_POST_ORDER, G_TRAVERSE_ALL, -1,
+                       mh_remove_missing_folder_items_func, folder);
+}
+
 static void mh_scan_tree_recursive(FolderItem *item)
 {
+       Folder *folder;
+#ifdef G_OS_WIN32
+       GDir *dir;
+#else
        DIR *dp;
        struct dirent *d;
+#endif
+       const gchar *dir_name;
        struct stat s;
-       gchar *entry;
+       gchar *real_path, *entry, *utf8entry, *utf8name;
        gint n_msg = 0;
 
        g_return_if_fail(item != NULL);
        g_return_if_fail(item->folder != NULL);
 
-       dp = opendir(item->path ? item->path : ".");
+       folder = item->folder;
+
+       real_path = item->path ? mh_filename_from_utf8(item->path) : g_strdup(".");
+#ifdef G_OS_WIN32
+       dir = g_dir_open(real_path, 0, NULL);
+       if (!dir) {
+               g_warning("failed to open directory: %s\n", real_path);
+               g_free(real_path);
+               return;
+       }
+#else
+       dp = opendir(real_path);
        if (!dp) {
-               FILE_OP_ERROR(item->path ? item->path : ".", "opendir");
+               FILE_OP_ERROR(real_path, "opendir");
                return;
        }
+#endif
+       g_free(real_path);
 
        debug_print("scanning %s ...\n",
                    item->path ? item->path
                    : LOCAL_FOLDER(item->folder)->rootpath);
-       if (item->folder->ui_func)
-               item->folder->ui_func(item->folder, item,
-                                     item->folder->ui_func_data);
+       if (folder->ui_func)
+               folder->ui_func(folder, item, folder->ui_func_data);
 
+#ifdef G_OS_WIN32
+       while ((dir_name = g_dir_read_name(dir)) != NULL) {
+#else
        while ((d = readdir(dp)) != NULL) {
-               if (d->d_name[0] == '.') continue;
+               dir_name = d->d_name;
+#endif
+               if (dir_name[0] == '.') continue;
 
+               utf8name = mh_filename_to_utf8(dir_name);
                if (item->path)
-                       entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
-                                           d->d_name, NULL);
+                       utf8entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
+                                               utf8name, NULL);
                else
-                       entry = g_strdup(d->d_name);
+                       utf8entry = g_strdup(utf8name);
+               entry = mh_filename_from_utf8(utf8entry);
 
-               if (stat(entry, &s) < 0) {
-                       FILE_OP_ERROR(entry, "stat");
-                       g_free(entry);
-                       continue;
-               }
-
-               if (S_ISDIR(s.st_mode)) {
-                       FolderItem *new_item;
+               if (
+#if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
+                       d->d_type == DT_DIR ||
+                       (d->d_type == DT_UNKNOWN &&
+#endif
+                       g_stat(entry, &s) == 0 && S_ISDIR(s.st_mode)
+#if !defined(G_OS_WIN32) && defined(HAVE_DIRENT_D_TYPE)
+                       )
+#endif
+                  ) {
+                       FolderItem *new_item = NULL;
+                       GNode *node;
 
 #if 0
                        if (mh_is_maildir(entry)) {
                                g_free(entry);
+                               g_free(utf8entry);
+                               g_free(utf8name);
                                continue;
                        }
 #endif
 
-                       new_item = folder_item_new(item->folder, d->d_name, entry);
-                       folder_item_append(item, new_item);
+                       node = item->node;
+                       for (node = node->children; node != NULL; node = node->next) {
+                               FolderItem *cur_item = FOLDER_ITEM(node->data);
+                               if (!strcmp2(cur_item->path, entry)) {
+                                       new_item = cur_item;
+                                       break;
+                               }
+                       }
+                       if (!new_item) {
+                               debug_print("new folder '%s' found.\n", entry);
+                               new_item = folder_item_new(folder, utf8name, utf8entry);
+                               folder_item_append(item, new_item);
+                       }
+
                        if (!item->path) {
-                               if (!strcmp(d->d_name, INBOX_DIR)) {
+                               if (!folder->inbox &&
+                                   !strcmp(dir_name, INBOX_DIR)) {
                                        new_item->stype = F_INBOX;
-                                       item->folder->inbox = new_item;
-                               } else if (!strcmp(d->d_name, OUTBOX_DIR)) {
+                                       folder->inbox = new_item;
+                               } else if (!folder->outbox &&
+                                          !strcmp(dir_name, OUTBOX_DIR)) {
                                        new_item->stype = F_OUTBOX;
-                                       item->folder->outbox = new_item;
-                               } else if (!strcmp(d->d_name, DRAFT_DIR)) {
+                                       folder->outbox = new_item;
+                               } else if (!folder->draft &&
+                                          !strcmp(dir_name, DRAFT_DIR)) {
                                        new_item->stype = F_DRAFT;
-                                       item->folder->draft = new_item;
-                               } else if (!strcmp(d->d_name, QUEUE_DIR)) {
+                                       folder->draft = new_item;
+                               } else if (!folder->queue &&
+                                          !strcmp(dir_name, QUEUE_DIR)) {
                                        new_item->stype = F_QUEUE;
-                                       item->folder->queue = new_item;
-                               } else if (!strcmp(d->d_name, TRASH_DIR)) {
+                                       folder->queue = new_item;
+                               } else if (!folder->trash &&
+                                          !strcmp(dir_name, TRASH_DIR)) {
                                        new_item->stype = F_TRASH;
-                                       item->folder->trash = new_item;
+                                       folder->trash = new_item;
                                }
                        }
+
                        mh_scan_tree_recursive(new_item);
-               } else if (to_number(d->d_name) != -1) n_msg++;
+               } else if (to_number(dir_name) > 0) n_msg++;
 
                g_free(entry);
+               g_free(utf8entry);
+               g_free(utf8name);
        }
 
+#ifdef G_OS_WIN32
+       g_dir_close(dir);
+#else
        closedir(dp);
+#endif
+
+       item->mtime = time(NULL);
 
 /*
        if (item->path) {
@@ -858,3 +1078,26 @@ static gboolean mh_rename_folder_func(GNode *node, gpointer data)
 
        return FALSE;
 }
+
+static gchar *mh_filename_from_utf8(const gchar *path)
+{
+       gchar *real_path = g_filename_from_utf8(path, -1, NULL, NULL, NULL);
+
+       if (!real_path) {
+               g_warning("mh_filename_from_utf8: faild to convert character set\n");
+               real_path = g_strdup(path);
+       }
+
+       return real_path;
+}
+
+static gchar *mh_filename_to_utf8(const gchar *path)
+{
+       gchar *utf8path = g_filename_to_utf8(path, -1, NULL, NULL, NULL);
+       if (!utf8path) {
+               g_warning("mh_filename_to_utf8: faild to convert character set\n");
+               utf8path = g_strdup(path);
+       }
+
+       return utf8path;
+}