claws-mail/src/mh.c

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/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
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* Copyright (C) 1999-2003 Hiroyuki Yamamoto
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*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "defs.h"
#include <glib.h>
#include <dirent.h>
#include <sys/stat.h>
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#include <unistd.h>
#include <string.h>
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#include <errno.h>
#undef MEASURE_TIME
#ifdef MEASURE_TIME
# include <sys/time.h>
#endif
#include "intl.h"
#include "folder.h"
#include "mh.h"
#include "procmsg.h"
#include "procheader.h"
#include "utils.h"
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);
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);
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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,
};
FolderClass *mh_get_class(void)
{
return &mh_class;
}
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Folder *mh_folder_new(const gchar *name, const gchar *path)
{
Folder *folder;
folder = (Folder *)g_new0(MHFolder, 1);
folder->klass = &mh_class;
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mh_folder_init(folder, name, path);
return folder;
}
static void mh_folder_destroy(Folder *folder)
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{
folder_local_folder_destroy(LOCAL_FOLDER(folder));
}
static void mh_folder_init(Folder *folder, const gchar *name, const gchar *path)
{
folder_local_folder_init(folder, name, path);
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}
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void mh_get_last_num(Folder *folder, FolderItem *item)
{
gchar *path;
DIR *dp;
struct dirent *d;
struct stat s;
gint max = 0;
gint num;
g_return_if_fail(item != NULL);
debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
path = folder_item_get_path(item);
g_return_if_fail(path != NULL);
if (change_dir(path) < 0) {
g_free(path);
return;
}
g_free(path);
if ((dp = opendir(".")) == NULL) {
FILE_OP_ERROR(item->path, "opendir");
return;
}
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 (max < num)
max = num;
}
}
closedir(dp);
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debug_print("Last number in dir %s = %d\n", item->path, max);
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item->last_num = max;
}
gint mh_get_num_list(Folder *folder, FolderItem *item, GSList **list)
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{
gchar *path;
DIR *dp;
struct dirent *d;
struct stat s;
gint num, nummsgs = 0;
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g_return_val_if_fail(item != NULL, -1);
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debug_print("mh_get_last_num(): Scanning %s ...\n", item->path);
path = folder_item_get_path(item);
g_return_val_if_fail(path != NULL, -1);
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if (change_dir(path) < 0) {
g_free(path);
return -1;
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}
g_free(path);
if ((dp = opendir(".")) == NULL) {
FILE_OP_ERROR(item->path, "opendir");
return -1;
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}
while ((d = readdir(dp)) != NULL) {
if ((num = to_number(d->d_name)) >= 0 &&
stat(d->d_name, &s) == 0 &&
S_ISREG(s.st_mode)) {
*list = g_slist_prepend(*list, GINT_TO_POINTER(num));
nummsgs++;
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}
}
closedir(dp);
return nummsgs;
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}
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gchar *mh_fetch_msg(Folder *folder, FolderItem *item, gint num)
{
gchar *path;
gchar *file;
g_return_val_if_fail(item != NULL, NULL);
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g_return_val_if_fail(num > 0, NULL);
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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);
return NULL;
}
return file;
}
MsgInfo *mh_get_msginfo(Folder *folder, FolderItem *item, gint num)
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{
MsgInfo *msginfo;
gchar *file;
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g_return_val_if_fail(item != NULL, NULL);
g_return_val_if_fail(num > 0, NULL);
file = mh_fetch_msg(folder, item, num);
if (!file) return NULL;
msginfo = mh_parse_msg(file, item);
if (msginfo)
msginfo->msgnum = num;
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g_free(file);
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return msginfo;
}
gchar *mh_get_new_msg_filename(FolderItem *dest)
{
gchar *destfile;
gchar *destpath;
destpath = folder_item_get_path(dest);
g_return_val_if_fail(destpath != NULL, NULL);
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if (!is_dir_exist(destpath))
make_dir_hier(destpath);
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for (;;) {
destfile = g_strdup_printf("%s%c%d", destpath, G_DIR_SEPARATOR,
dest->last_num + 1);
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if (is_file_entry_exist(destfile)) {
dest->last_num++;
g_free(destfile);
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} else
break;
}
g_free(destpath);
return destfile;
}
gint mh_add_msg(Folder *folder, FolderItem *dest, const gchar *file, MsgFlags *flags)
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{
gint ret;
GSList file_list;
MsgFileInfo fileinfo;
g_return_val_if_fail(file != NULL, -1);
fileinfo.msginfo = NULL;
fileinfo.file = (gchar *)file;
fileinfo.flags = flags;
file_list.data = &fileinfo;
file_list.next = NULL;
ret = mh_add_msgs(folder, dest, &file_list, NULL);
return ret;
}
gint mh_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
GRelation *relation)
{
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gchar *destfile;
GSList *cur;
MsgFileInfo *fileinfo;
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g_return_val_if_fail(dest != NULL, -1);
g_return_val_if_fail(file_list != NULL, -1);
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if (dest->last_num < 0) {
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mh_get_last_num(folder, dest);
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if (dest->last_num < 0) return -1;
}
for (cur = file_list; cur != NULL; cur = cur->next) {
fileinfo = (MsgFileInfo *)cur->data;
destfile = mh_get_new_msg_filename(dest);
if (destfile == NULL) return -1;
if (link(fileinfo->file, destfile) < 0) {
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;
}
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}
if (relation != NULL)
g_relation_insert(relation, fileinfo, GINT_TO_POINTER(dest->last_num + 1));
g_free(destfile);
dest->last_num++;
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}
return dest->last_num;
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}
gint mh_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
{
gchar *srcfile;
gchar *destfile;
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gint filemode = 0;
FolderItemPrefs *prefs;
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g_return_val_if_fail(dest != NULL, -1);
g_return_val_if_fail(msginfo != NULL, -1);
if (msginfo->folder == dest) {
g_warning("the src folder is identical to the dest.\n");
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return -1;
}
if (dest->last_num < 0) {
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mh_get_last_num(folder, dest);
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if (dest->last_num < 0) return -1;
}
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prefs = dest->prefs;
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srcfile = procmsg_get_message_file(msginfo);
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destfile = mh_get_new_msg_filename(dest);
if (!destfile) {
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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);
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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) {
g_free(srcfile);
g_free(destfile);
return -1;
}
} else if (copy_file(srcfile, destfile, TRUE) < 0) {
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FILE_OP_ERROR(srcfile, "copy");
g_free(srcfile);
g_free(destfile);
return -1;
}
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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;
}
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g_free(srcfile);
g_free(destfile);
dest->last_num++;
return dest->last_num;
}
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gint mh_remove_msg(Folder *folder, FolderItem *item, gint num)
{
gchar *file;
g_return_val_if_fail(item != NULL, -1);
file = mh_fetch_msg(folder, item, num);
g_return_val_if_fail(file != NULL, -1);
if (unlink(file) < 0) {
FILE_OP_ERROR(file, "unlink");
g_free(file);
return -1;
}
g_free(file);
return 0;
}
gint mh_remove_all_msg(Folder *folder, FolderItem *item)
{
gchar *path;
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gint val;
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g_return_val_if_fail(item != NULL, -1);
path = folder_item_get_path(item);
g_return_val_if_fail(path != NULL, -1);
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val = remove_all_numbered_files(path);
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g_free(path);
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return val;
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}
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)
return TRUE;
return FALSE;
}
void mh_scan_tree(Folder *folder)
{
FolderItem *item;
gchar *rootpath;
g_return_if_fail(folder != NULL);
item = folder_item_new(folder, folder->name, NULL);
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item->folder = folder;
folder->node = g_node_new(item);
rootpath = folder_item_get_path(item);
if (change_dir(rootpath) < 0) {
g_free(rootpath);
return;
}
g_free(rootpath);
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mh_create_tree(folder);
mh_scan_tree_recursive(item);
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}
#define MAKE_DIR_IF_NOT_EXIST(dir) \
{ \
if (!is_dir_exist(dir)) { \
if (is_file_exist(dir)) { \
g_warning("File `%s' already exists.\n" \
"Can't create folder.", dir); \
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return -1; \
} \
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if (make_dir(dir) < 0) \
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return -1; \
} \
}
gint mh_create_tree(Folder *folder)
{
gchar *rootpath;
g_return_val_if_fail(folder != NULL, -1);
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CHDIR_RETURN_VAL_IF_FAIL(get_home_dir(), -1);
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rootpath = LOCAL_FOLDER(folder)->rootpath;
MAKE_DIR_IF_NOT_EXIST(rootpath);
CHDIR_RETURN_VAL_IF_FAIL(rootpath, -1);
MAKE_DIR_IF_NOT_EXIST(INBOX_DIR);
MAKE_DIR_IF_NOT_EXIST(OUTBOX_DIR);
MAKE_DIR_IF_NOT_EXIST(QUEUE_DIR);
MAKE_DIR_IF_NOT_EXIST(DRAFT_DIR);
MAKE_DIR_IF_NOT_EXIST(TRASH_DIR);
return 0;
}
#undef MAKE_DIR_IF_NOT_EXIST
gchar *mh_item_get_path(Folder *folder, FolderItem *item)
{
gchar *folder_path, *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) {
if (item->path)
path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
item->path, NULL);
else
path = g_strdup(folder_path);
} else {
if (item->path)
path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
folder_path, G_DIR_SEPARATOR_S,
item->path, NULL);
else
path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
folder_path, NULL);
}
g_free(folder_path);
return path;
}
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FolderItem *mh_create_folder(Folder *folder, FolderItem *parent,
const gchar *name)
{
gchar *path;
gchar *fullpath;
FolderItem *new_item;
gchar *mh_sequences_filename;
FILE *mh_sequences_file;
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g_return_val_if_fail(folder != NULL, NULL);
g_return_val_if_fail(parent != NULL, NULL);
g_return_val_if_fail(name != NULL, NULL);
path = folder_item_get_path(parent);
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if (!is_dir_exist(path))
if (make_dir_hier(path) != 0)
return NULL;
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fullpath = g_strconcat(path, G_DIR_SEPARATOR_S, name, NULL);
g_free(path);
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if (make_dir(fullpath) < 0) {
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g_free(fullpath);
return NULL;
}
g_free(fullpath);
if (parent->path)
path = g_strconcat(parent->path, G_DIR_SEPARATOR_S, name,
NULL);
else
path = g_strdup(name);
new_item = folder_item_new(folder, name, path);
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folder_item_append(parent, new_item);
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g_free(path);
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) {
fclose(mh_sequences_file);
}
g_free(mh_sequences_filename);
g_free(path);
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return new_item;
}
gint mh_rename_folder(Folder *folder, FolderItem *item, const gchar *name)
{
gchar *oldpath;
gchar *dirname;
gchar *newpath;
GNode *node;
gchar *paths[2];
g_return_val_if_fail(folder != NULL, -1);
g_return_val_if_fail(item != NULL, -1);
g_return_val_if_fail(item->path != NULL, -1);
g_return_val_if_fail(name != NULL, -1);
oldpath = folder_item_get_path(item);
if (!is_dir_exist(oldpath))
make_dir_hier(oldpath);
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dirname = g_dirname(oldpath);
newpath = g_strconcat(dirname, G_DIR_SEPARATOR_S, name, NULL);
g_free(dirname);
if (rename(oldpath, newpath) < 0) {
FILE_OP_ERROR(oldpath, "rename");
g_free(oldpath);
g_free(newpath);
return -1;
}
g_free(oldpath);
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);
g_free(dirname);
} else
newpath = 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,
mh_rename_folder_func, paths);
g_free(paths[0]);
g_free(paths[1]);
return 0;
}
gint mh_remove_folder(Folder *folder, FolderItem *item)
{
gchar *path;
g_return_val_if_fail(folder != NULL, -1);
g_return_val_if_fail(item != NULL, -1);
g_return_val_if_fail(item->path != NULL, -1);
path = folder_item_get_path(item);
if (remove_dir_recursive(path) < 0) {
g_warning("can't remove directory `%s'\n", path);
g_free(path);
return -1;
}
g_free(path);
folder_item_remove(item);
return 0;
}
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;
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g_return_val_if_fail(item != NULL, NULL);
g_return_val_if_fail(file != NULL, NULL);
if (item->stype == F_QUEUE) {
MSG_SET_TMP_FLAGS(flags, MSG_QUEUED);
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} else if (item->stype == F_DRAFT) {
MSG_SET_TMP_FLAGS(flags, MSG_DRAFT);
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}
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msginfo = procheader_parse_file(file, flags, FALSE, FALSE);
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if (!msginfo) return NULL;
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;
}
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#if 0
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static gboolean mh_is_maildir_one(const gchar *path, const gchar *dir)
{
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gchar *entry;
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gboolean result;
entry = g_strconcat(path, G_DIR_SEPARATOR_S, dir, NULL);
result = is_dir_exist(entry);
g_free(entry);
return result;
}
/*
* check whether PATH is a Maildir style mailbox.
* This is the case if the 3 subdir: new, cur, tmp are existing.
* This functon assumes that entry is an directory
*/
static gboolean mh_is_maildir(const gchar *path)
{
return mh_is_maildir_one(path, "new") &&
mh_is_maildir_one(path, "cur") &&
mh_is_maildir_one(path, "tmp");
}
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#endif
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static void mh_scan_tree_recursive(FolderItem *item)
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{
DIR *dp;
struct dirent *d;
struct stat s;
gchar *entry;
gint n_msg = 0;
g_return_if_fail(item != NULL);
g_return_if_fail(item->folder != NULL);
dp = opendir(item->path ? item->path : ".");
if (!dp) {
FILE_OP_ERROR(item->path ? item->path : ".", "opendir");
return;
}
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);
while ((d = readdir(dp)) != NULL) {
if (d->d_name[0] == '.') continue;
if (item->path)
entry = g_strconcat(item->path, G_DIR_SEPARATOR_S,
d->d_name, NULL);
else
entry = g_strdup(d->d_name);
if (stat(entry, &s) < 0) {
FILE_OP_ERROR(entry, "stat");
g_free(entry);
continue;
}
if (S_ISDIR(s.st_mode)) {
FolderItem *new_item;
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#if 0
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if (mh_is_maildir(entry)) {
g_free(entry);
continue;
}
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#endif
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new_item = folder_item_new(item->folder, d->d_name, entry);
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folder_item_append(item, new_item);
if (!item->path) {
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if (!strcmp(d->d_name, INBOX_DIR)) {
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new_item->stype = F_INBOX;
item->folder->inbox = new_item;
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} else if (!strcmp(d->d_name, OUTBOX_DIR)) {
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new_item->stype = F_OUTBOX;
item->folder->outbox = new_item;
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} else if (!strcmp(d->d_name, DRAFT_DIR)) {
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new_item->stype = F_DRAFT;
item->folder->draft = new_item;
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} else if (!strcmp(d->d_name, QUEUE_DIR)) {
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new_item->stype = F_QUEUE;
item->folder->queue = new_item;
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} else if (!strcmp(d->d_name, TRASH_DIR)) {
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new_item->stype = F_TRASH;
item->folder->trash = new_item;
}
}
mh_scan_tree_recursive(new_item);
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} else if (to_number(d->d_name) != -1) n_msg++;
g_free(entry);
}
closedir(dp);
/*
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if (item->path) {
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gint new, unread, total, min, max;
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procmsg_get_mark_sum(item->path, &new, &unread, &total,
&min, &max, 0);
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if (n_msg > total) {
new += n_msg - total;
unread += n_msg - total;
}
item->new = new;
item->unread = unread;
item->total = n_msg;
}
*/
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}
static gboolean mh_rename_folder_func(GNode *node, gpointer data)
{
FolderItem *item = node->data;
gchar **paths = data;
const gchar *oldpath = paths[0];
const gchar *newpath = paths[1];
gchar *base;
gchar *new_itempath;
gint oldpathlen;
oldpathlen = strlen(oldpath);
if (strncmp(oldpath, item->path, oldpathlen) != 0) {
g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
return TRUE;
}
base = item->path + oldpathlen;
while (*base == G_DIR_SEPARATOR) base++;
if (*base == '\0')
new_itempath = g_strdup(newpath);
else
new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
NULL);
g_free(item->path);
item->path = new_itempath;
return FALSE;
}