/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
*
* Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@aful.org> .
*
* 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
*/
#include <config.h>
#include "mh-uid.h"
#include "camel-log.h"
#include "camel-stream.h"
#include "camel-stream-fs.h"
#include "camel-stream-buffered-fs.h"
#include "gmime-utils.h"
#include "md5-utils.h"
#include "mh-utils.h"
#include <sys/stat.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
void
mh_uid_get_for_file (gchar *filename, guchar uid[16])
{
CamelStream *message_stream;
GArray *header_array;
Rfc822Header *cur_header;
int i;
MD5Context ctx;
message_stream = camel_stream_buffered_fs_new_with_name (filename,
CAMEL_STREAM_BUFFERED_FS_READ);
header_array = get_header_array_from_stream (message_stream);
gtk_object_unref (GTK_OBJECT (message_stream));
md5_init (&ctx);
for (i=0; i<header_array->len; i++) {
cur_header = (Rfc822Header *)header_array->data + i;
if (!g_strcasecmp (cur_header->name, "subject")) {
md5_update (&ctx, cur_header->value, strlen (cur_header->value));
} else if (!g_strcasecmp (cur_header->name, "sender")) {
md5_update (&ctx, cur_header->value, strlen (cur_header->value));
} else if (!g_strcasecmp (cur_header->name, "date")) {
md5_update (&ctx, cur_header->value, strlen (cur_header->value));
}
g_free (cur_header->name);
g_free (cur_header->value);
}
g_array_free (header_array, TRUE);
md5_final (uid, &ctx);
}
void
mh_save_uid_list (CamelMhFolder *mh_folder)
{
GArray *uid_array;
MhUidCouple *first_uid_couple;
gchar *directory_path = mh_folder->directory_path;
gchar *uidfile_path;
int fd;
int i;
uidfile_path = g_strdup_printf ("%s/%s", directory_path, ".camel-uid-list");
CAMEL_LOG_FULL_DEBUG ("In the process of writing %s\n", uidfile_path);
fd = open (uidfile_path, O_WRONLY | O_CREAT );
if (!fd) {
CAMEL_LOG_FULL_DEBUG ("could not open file %s for writing. Exiting.\n", uidfile_path);
g_free (uidfile_path);
return;
}
g_free (uidfile_path);
uid_array = mh_folder->uid_array;
first_uid_couple = (MhUidCouple *)uid_array->data;
/* write the number of uid contained in the file */
write (fd, &(uid_array->len), sizeof (guint));
CAMEL_LOG_FULL_DEBUG ("%d entrie present in the list\n", uid_array->len);
/* now write the array of uid self */
write (fd, first_uid_couple, sizeof (MhUidCouple) * uid_array->len);
close (fd);
}
gint
mh_load_uid_list (CamelMhFolder *mh_folder)
{
GArray *new_uid_array;
MhUidCouple *first_uid_couple;
gchar *directory_path = mh_folder->directory_path;
gchar *uidfile_path;
int fd;
guint uid_nb;
struct stat stat_buf;
gint stat_error = 0;
uidfile_path = g_strdup_printf ("%s/%s", directory_path, ".camel-uid-list");
/* tests if file exists */
stat_error = stat (uidfile_path, &stat_buf);
if (!((stat_error != -1) && S_ISREG (stat_buf.st_mode))) {
CAMEL_LOG_FULL_DEBUG ("CamelMhFolder::load_uid_list "
"file %s does not exist. Exiting.\n", uidfile_path);
g_free (uidfile_path);
return -1;
}
fd = open (uidfile_path, O_RDONLY);
g_free (uidfile_path);
if (!fd) return -1;
if (mh_folder->uid_array) g_array_free (mh_folder->uid_array, FALSE);
/* read the number of uids in the file */
read (fd, &uid_nb, sizeof (guint));
CAMEL_LOG_FULL_DEBUG ("reading %d uid_entries\n", uid_nb);
new_uid_array = g_array_new (FALSE, FALSE, sizeof (MhUidCouple));
new_uid_array = g_array_set_size (new_uid_array, uid_nb);
first_uid_couple = (MhUidCouple *)new_uid_array->data;
read (fd, first_uid_couple, sizeof (MhUidCouple) * uid_nb);
mh_folder->uid_array = new_uid_array;
return 1;
}
gint
mh_generate_uid_list (CamelMhFolder *mh_folder)
{
GArray *new_uid_array;
const gchar *directory_path;
struct dirent *dir_entry;
DIR *dir_handle;
gchar *msg_path;
guint msg_count;
MhUidCouple *uid_couple;
guint file_number;
g_assert (mh_folder);
CAMEL_LOG_FULL_DEBUG ("in the process of creating uid list \n");
directory_path = mh_folder->directory_path;
if (!directory_path) {
CAMEL_LOG_FULL_DEBUG ("folder has no directory path. Exiting\n");
return -1;
}
msg_count = camel_folder_get_message_count (CAMEL_FOLDER (mh_folder), NULL);
if (!msg_count) {
CAMEL_LOG_FULL_DEBUG ("no message in %s. Exiting\n", directory_path);
return -1;
}
new_uid_array = g_array_new (FALSE, FALSE, sizeof (MhUidCouple));
new_uid_array = g_array_set_size (new_uid_array, msg_count);
uid_couple = (MhUidCouple *)new_uid_array->data;
dir_handle = opendir (directory_path);
/* read first entry in the directory */
dir_entry = readdir (dir_handle);
while (dir_entry != NULL) {
/* tests if the entry correspond to a message file */
if (mh_is_a_message_file (dir_entry->d_name, directory_path)) {
/* get the uid for this message */
msg_path = g_strdup_printf ("%s/%s", directory_path, dir_entry->d_name);
mh_uid_get_for_file (msg_path, uid_couple->uid);
g_free (msg_path);
/* convert filename into file number */
uid_couple->file_number = atoi (dir_entry->d_name);
uid_couple++;
}
/* read next entry */
dir_entry = readdir (dir_handle);
}
closedir (dir_handle);
mh_folder->uid_array = new_uid_array;
}
