/*
* libEtPan! -- a mail stuff library
*
* Copyright (C) 2001, 2005 - DINH Viet Hoa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the libEtPan! project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* $Id: mhdriver_cached.c,v 1.46 2006/06/26 11:50:26 hoa Exp $
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "mhdriver_cached.h"
#include <stdio.h>
#include <sys/types.h>
#ifdef _MSC_VER
# include "win_etpan.h"
#else
# include <dirent.h>
# include <unistd.h>
# include <sys/mman.h>
#endif
#include <sys/stat.h>
#include <ctype.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include "mail.h"
#include "mail_cache_db.h"
#include "generic_cache.h"
#include "imfcache.h"
#include "mhdriver.h"
#include "mhdriver_cached_message.h"
#include "mailmh.h"
#include "maildriver_tools.h"
#include "mhdriver_tools.h"
#include "mailmessage.h"
static int mhdriver_cached_initialize(mailsession * session);
static void mhdriver_cached_uninitialize(mailsession * session);
static int mhdriver_cached_parameters(mailsession * session,
int id, void * value);
static int mhdriver_cached_connect_path(mailsession * session, const char * path);
static int mhdriver_cached_logout(mailsession * session);
static int mhdriver_cached_build_folder_name(mailsession * session, const char * mb,
const char * name, char ** result);
static int mhdriver_cached_create_folder(mailsession * session, const char * mb);
static int mhdriver_cached_delete_folder(mailsession * session, const char * mb);
static int mhdriver_cached_rename_folder(mailsession * session, const char * mb,
const char * new_name);
static int mhdriver_cached_check_folder(mailsession * session);
static int mhdriver_cached_select_folder(mailsession * session, const char * mb);
static int mhdriver_cached_expunge_folder(mailsession * session);
static int mhdriver_cached_status_folder(mailsession * session, const char * mb,
uint32_t * result_messages, uint32_t * result_recent,
uint32_t * result_unseen);
static int mhdriver_cached_messages_number(mailsession * session, const char * mb,
uint32_t * result);
static int mhdriver_cached_recent_number(mailsession * session, const char * mb,
uint32_t * result);
static int mhdriver_cached_unseen_number(mailsession * session, const char * mb,
uint32_t * result);
static int mhdriver_cached_list_folders(mailsession * session, const char * mb,
struct mail_list ** result);
static int mhdriver_cached_lsub_folders(mailsession * session, const char * mb,
struct mail_list ** result);
static int mhdriver_cached_subscribe_folder(mailsession * session, const char * mb);
static int mhdriver_cached_unsubscribe_folder(mailsession * session,
const char * mb);
static int mhdriver_cached_append_message(mailsession * session,
const char * message, size_t size);
static int mhdriver_cached_append_message_flags(mailsession * session,
const char * message, size_t size, struct mail_flags * flags);
static int mhdriver_cached_copy_message(mailsession * session,
uint32_t num, const char * mb);
static int mhdriver_cached_remove_message(mailsession * session,
uint32_t num);
static int mhdriver_cached_move_message(mailsession * session,
uint32_t num, const char * mb);
static int
mhdriver_cached_get_messages_list(mailsession * session,
struct mailmessage_list ** result);
static int
mhdriver_cached_get_envelopes_list(mailsession * session,
struct mailmessage_list * env_list);
static int mhdriver_cached_get_message(mailsession * session,
uint32_t num, mailmessage ** result);
static int mhdriver_cached_get_message_by_uid(mailsession * session,
const char * uid,
mailmessage ** result);
static mailsession_driver local_mh_cached_session_driver = {
#if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
/* sess_name */ "mh-cached",
/* sess_initialize */ mhdriver_cached_initialize,
/* sess_uninitialize */ mhdriver_cached_uninitialize,
/* sess_parameters */ mhdriver_cached_parameters,
/* sess_connect_stream */ NULL,
/* sess_connect_path */ mhdriver_cached_connect_path,
/* sess_starttls */ NULL,
/* sess_login */ NULL,
/* sess_logout */ mhdriver_cached_logout,
/* sess_noop */ NULL,
/* sess_build_folder_name */ mhdriver_cached_build_folder_name,
/* sess_create_folder */ mhdriver_cached_create_folder,
/* sess_delete_folder */ mhdriver_cached_delete_folder,
/* sess_rename_folder */ mhdriver_cached_rename_folder,
/* sess_check_folder */ mhdriver_cached_check_folder,
/* sess_examine_folder */ NULL,
/* sess_select_folder */ mhdriver_cached_select_folder,
/* sess_expunge_folder */ mhdriver_cached_expunge_folder,
/* sess_status_folder */ mhdriver_cached_status_folder,
/* sess_messages_number */ mhdriver_cached_messages_number,
/* sess_recent_number */ mhdriver_cached_recent_number,
/* sess_unseen_number */ mhdriver_cached_unseen_number,
/* sess_list_folders */ mhdriver_cached_list_folders,
/* sess_lsub_folders */ mhdriver_cached_lsub_folders,
/* sess_subscribe_folder */ mhdriver_cached_subscribe_folder,
/* sess_unsubscribe_folder */ mhdriver_cached_unsubscribe_folder,
/* sess_append_message */ mhdriver_cached_append_message,
/* sess_append_message_flags */ mhdriver_cached_append_message_flags,
/* sess_copy_message */ mhdriver_cached_copy_message,
/* sess_move_message */ mhdriver_cached_move_message,
/* sess_get_message */ mhdriver_cached_get_message,
/* sess_get_message_by_uid */ mhdriver_cached_get_message_by_uid,
/* sess_get_messages_list */ mhdriver_cached_get_messages_list,
/* sess_get_envelopes_list */ mhdriver_cached_get_envelopes_list,
/* sess_remove_message */ mhdriver_cached_remove_message,
#if 0
/* sess_search_messages */ maildriver_generic_search_messages,
#endif
/* sess_login_sasl */ NULL,
#else
.sess_name = "mh-cached",
.sess_initialize = mhdriver_cached_initialize,
.sess_uninitialize = mhdriver_cached_uninitialize,
.sess_parameters = mhdriver_cached_parameters,
.sess_connect_stream = NULL,
.sess_connect_path = mhdriver_cached_connect_path,
.sess_starttls = NULL,
.sess_login = NULL,
.sess_logout = mhdriver_cached_logout,
.sess_noop = NULL,
.sess_build_folder_name = mhdriver_cached_build_folder_name,
.sess_create_folder = mhdriver_cached_create_folder,
.sess_delete_folder = mhdriver_cached_delete_folder,
.sess_rename_folder = mhdriver_cached_rename_folder,
.sess_check_folder = mhdriver_cached_check_folder,
.sess_examine_folder = NULL,
.sess_select_folder = mhdriver_cached_select_folder,
.sess_expunge_folder = mhdriver_cached_expunge_folder,
.sess_status_folder = mhdriver_cached_status_folder,
.sess_messages_number = mhdriver_cached_messages_number,
.sess_recent_number = mhdriver_cached_recent_number,
.sess_unseen_number = mhdriver_cached_unseen_number,
.sess_list_folders = mhdriver_cached_list_folders,
.sess_lsub_folders = mhdriver_cached_lsub_folders,
.sess_subscribe_folder = mhdriver_cached_subscribe_folder,
.sess_unsubscribe_folder = mhdriver_cached_unsubscribe_folder,
.sess_append_message = mhdriver_cached_append_message,
.sess_append_message_flags = mhdriver_cached_append_message_flags,
.sess_copy_message = mhdriver_cached_copy_message,
.sess_move_message = mhdriver_cached_move_message,
.sess_get_messages_list = mhdriver_cached_get_messages_list,
.sess_get_envelopes_list = mhdriver_cached_get_envelopes_list,
.sess_remove_message = mhdriver_cached_remove_message,
#if 0
.sess_search_messages = maildriver_generic_search_messages,
#endif
.sess_get_message = mhdriver_cached_get_message,
.sess_get_message_by_uid = mhdriver_cached_get_message_by_uid,
.sess_login_sasl = NULL,
#endif
};
mailsession_driver * mh_cached_session_driver =
&local_mh_cached_session_driver;
#define ENV_NAME "env.db"
#define FLAGS_NAME "flags.db"
static inline struct mh_cached_session_state_data *
get_cached_data(mailsession * session)
{
return session->sess_data;
}
static inline mailsession * get_ancestor(mailsession * session)
{
return get_cached_data(session)->mh_ancestor;
}
static inline struct mh_session_state_data *
get_ancestor_data(mailsession * session)
{
return get_ancestor(session)->sess_data;
}
static inline struct mailmh *
get_mh_session(mailsession * session)
{
return get_ancestor_data(session)->mh_session;
}
static inline struct mailmh_folder *
get_mh_cur_folder(mailsession * session)
{
return get_ancestor_data(session)->mh_cur_folder;
}
#define FILENAME_MAX_UID "max-uid"
/* write max uid current value */
static int write_max_uid_value(mailsession * session)
{
int r;
char filename[PATH_MAX];
FILE * f;
int res;
struct mh_cached_session_state_data * cached_data;
struct mh_session_state_data * ancestor_data;
int fd;
MMAPString * mmapstr;
size_t cur_token;
cached_data = get_cached_data(session);
ancestor_data = get_ancestor_data(session);
if (cached_data->mh_quoted_mb == NULL)
return MAIL_ERROR_BAD_STATE;
snprintf(filename, PATH_MAX, "%s/%s/%s",
cached_data->mh_cache_directory,
cached_data->mh_quoted_mb, FILENAME_MAX_UID);
fd = creat(filename, S_IRUSR | S_IWUSR);
if (fd < 0) {
res = MAIL_ERROR_FILE;
goto err;
}
f = fdopen(fd, "w");
if (f == NULL) {
close(fd);
res = MAIL_ERROR_FILE;
goto err;
}
mmapstr = mmap_string_new("");
if (mmapstr == NULL) {
res = MAIL_ERROR_MEMORY;
goto close;
}
r = mail_serialize_clear(mmapstr, &cur_token);
if (r != MAIL_NO_ERROR) {
res = r;
goto free_mmapstr;
}
r = mailimf_cache_int_write(mmapstr, &cur_token,
ancestor_data->mh_cur_folder->fl_max_index);
if (r != MAIL_NO_ERROR) {
res = r;
goto free_mmapstr;
}
fwrite(mmapstr->str, 1, mmapstr->len, f);
mmap_string_free(mmapstr);
fclose(f);
return MAIL_NO_ERROR;
free_mmapstr:
mmap_string_free(mmapstr);
close:
fclose(f);
err:
return res;
}
static int read_max_uid_value(mailsession * session)
{
int r;
char filename[PATH_MAX];
FILE * f;
uint32_t written_uid;
int res;
struct mh_cached_session_state_data * cached_data;
struct mh_session_state_data * ancestor_data;
MMAPString * mmapstr;
size_t cur_token;
char buf[sizeof(uint32_t)];
size_t read_size;
cached_data = get_cached_data(session);
ancestor_data = get_ancestor_data(session);
snprintf(filename, PATH_MAX, "%s/%s/%s",
cached_data->mh_cache_directory,
cached_data->mh_quoted_mb, FILENAME_MAX_UID);
f = fopen(filename, "r");
if (f == NULL) {
res = MAIL_ERROR_FILE;
goto err;
}
read_size = fread(buf, 1, sizeof(uint32_t), f);
mmapstr = mmap_string_new_len(buf, read_size);
if (mmapstr == NULL) {
res = MAIL_ERROR_MEMORY;
goto close;
}
cur_token = 0;
r = mailimf_cache_int_read(mmapstr, &cur_token, &written_uid);
if (r != MAIL_NO_ERROR) {
fclose(f);
res = r;
goto free_mmapstr;
}
mmap_string_free(mmapstr);
fclose(f);
if (written_uid > ancestor_data->mh_cur_folder->fl_max_index)
ancestor_data->mh_cur_folder->fl_max_index = written_uid;
return MAIL_NO_ERROR;
free_mmapstr:
mmap_string_free(mmapstr);
close:
fclose(f);
err:
return res;
}
static int mhdriver_cached_initialize(mailsession * session)
{
struct mh_cached_session_state_data * data;
data = malloc(sizeof(* data));
if (data == NULL)
goto err;
data->mh_flags_store = mail_flags_store_new();
if (data->mh_flags_store == NULL)
goto free;
data->mh_ancestor = mailsession_new(mh_session_driver);
if (data->mh_ancestor == NULL)
goto free_store;
data->mh_quoted_mb = NULL;
session->sess_data = data;
return MAIL_NO_ERROR;
free_store:
mail_flags_store_free(data->mh_flags_store);
free:
free(data);
err:
return MAIL_ERROR_MEMORY;
}
static void free_state(struct mh_cached_session_state_data * mh_data)
{
if (mh_data->mh_quoted_mb) {
free(mh_data->mh_quoted_mb);
mh_data->mh_quoted_mb = NULL;
}
}
static int mh_flags_store_process(char * flags_directory, char * quoted_mb,
struct mail_flags_store * flags_store)
{
char filename_flags[PATH_MAX];
struct mail_cache_db * cache_db_flags;
MMAPString * mmapstr;
unsigned int i;
int r;
int res;
if (carray_count(flags_store->fls_tab) == 0)
return MAIL_NO_ERROR;
if (quoted_mb == NULL)
return MAIL_NO_ERROR;
snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
flags_directory, quoted_mb, FLAGS_NAME);
r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
if (r < 0) {
res = MAIL_ERROR_FILE;
goto err;
}
mmapstr = mmap_string_new("");
if (mmapstr == NULL) {
res = MAIL_ERROR_MEMORY;
goto close_db_flags;
}
for(i = 0 ; i < carray_count(flags_store->fls_tab) ; i ++) {
mailmessage * msg;
msg = carray_get(flags_store->fls_tab, i);
r = mhdriver_write_cached_flags(cache_db_flags, mmapstr,
msg->msg_uid, msg->msg_flags);
}
mmap_string_free(mmapstr);
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
mail_flags_store_clear(flags_store);
return MAIL_NO_ERROR;
close_db_flags:
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
err:
return res;
}
static void mhdriver_cached_uninitialize(mailsession * session)
{
struct mh_cached_session_state_data * data;
data = get_cached_data(session);
mh_flags_store_process(data->mh_flags_directory, data->mh_quoted_mb,
data->mh_flags_store);
mail_flags_store_free(data->mh_flags_store);
free_state(data);
mailsession_free(data->mh_ancestor);
free(data);
session->sess_data = NULL;
}
static int mhdriver_cached_parameters(mailsession * session,
int id, void * value)
{
struct mh_cached_session_state_data * cached_data;
int r;
cached_data = get_cached_data(session);
switch (id) {
case MHDRIVER_CACHED_SET_CACHE_DIRECTORY:
strncpy(cached_data->mh_cache_directory, value, PATH_MAX);
cached_data->mh_cache_directory[PATH_MAX - 1] = '\0';
r = generic_cache_create_dir(cached_data->mh_cache_directory);
if (r != MAIL_NO_ERROR)
return r;
return MAIL_NO_ERROR;
case MHDRIVER_CACHED_SET_FLAGS_DIRECTORY:
strncpy(cached_data->mh_flags_directory, value, PATH_MAX);
cached_data->mh_flags_directory[PATH_MAX - 1] = '\0';
r = generic_cache_create_dir(cached_data->mh_flags_directory);
if (r != MAIL_NO_ERROR)
return r;
return MAIL_NO_ERROR;
}
return MAIL_ERROR_INVAL;
}
static int mhdriver_cached_connect_path(mailsession * session, const char * path)
{
return mailsession_connect_path(get_ancestor(session), path);
}
static int mhdriver_cached_logout(mailsession * session)
{
int r;
struct mh_cached_session_state_data * cached_data;
r = write_max_uid_value(session);
cached_data = get_cached_data(session);
mh_flags_store_process(cached_data->mh_flags_directory,
cached_data->mh_quoted_mb,
cached_data->mh_flags_store);
return mailsession_logout(get_ancestor(session));
}
static int mhdriver_cached_check_folder(mailsession * session)
{
struct mh_cached_session_state_data * cached_data;
cached_data = get_cached_data(session);
mh_flags_store_process(cached_data->mh_flags_directory,
cached_data->mh_quoted_mb,
cached_data->mh_flags_store);
return MAIL_NO_ERROR;
}
/* folders operations */
static int mhdriver_cached_build_folder_name(mailsession * session, const char * mb,
const char * name, char ** result)
{
return mailsession_build_folder_name(get_ancestor(session),
mb, name, result);
}
static int mhdriver_cached_create_folder(mailsession * session, const char * mb)
{
return mailsession_create_folder(get_ancestor(session), mb);
}
static int mhdriver_cached_delete_folder(mailsession * session, const char * mb)
{
return mailsession_delete_folder(get_ancestor(session), mb);
}
static int mhdriver_cached_rename_folder(mailsession * session, const char * mb,
const char * new_name)
{
return mailsession_rename_folder(get_ancestor(session), mb, new_name);
}
static int get_cache_directory(mailsession * session,
const char * path, char ** result)
{
char * quoted_mb;
char dirname[PATH_MAX];
int res;
int r;
struct mh_cached_session_state_data * cached_data;
cached_data = get_cached_data(session);
quoted_mb = maildriver_quote_mailbox(path);
if (quoted_mb == NULL) {
res = MAIL_ERROR_MEMORY;
goto err;
}
snprintf(dirname, PATH_MAX, "%s/%s",
cached_data->mh_cache_directory, quoted_mb);
r = generic_cache_create_dir(dirname);
if (r != MAIL_NO_ERROR) {
res = r;
goto free;
}
snprintf(dirname, PATH_MAX, "%s/%s",
cached_data->mh_flags_directory, quoted_mb);
r = generic_cache_create_dir(dirname);
if (r != MAIL_NO_ERROR) {
res = r;
goto free;
}
* result = quoted_mb;
return MAIL_NO_ERROR;
free:
free(quoted_mb);
err:
return res;
}
static int mhdriver_cached_select_folder(mailsession * session, const char * mb)
{
int r;
int res;
char * quoted_mb;
struct mh_cached_session_state_data * cached_data;
cached_data = get_cached_data(session);
mh_flags_store_process(cached_data->mh_flags_directory,
cached_data->mh_quoted_mb,
cached_data->mh_flags_store);
quoted_mb = NULL;
r = get_cache_directory(session, mb, "ed_mb);
if (r != MAIL_NO_ERROR) {
res = r;
goto err;
}
r = mailsession_select_folder(get_ancestor(session), mb);
if (r != MAIL_NO_ERROR) {
res = r;
goto free;
}
r = write_max_uid_value(session);
free_state(cached_data);
cached_data->mh_quoted_mb = quoted_mb;
r = read_max_uid_value(session);
return MAIL_NO_ERROR;
free:
free(quoted_mb);
err:
return res;
}
static int mhdriver_cached_expunge_folder(mailsession * session)
{
struct mailmh_folder * folder;
int res;
char filename_flags[PATH_MAX];
struct mail_cache_db * cache_db_flags;
MMAPString * mmapstr;
struct mh_cached_session_state_data * cached_data;
unsigned int i;
int r;
cached_data = get_cached_data(session);
if (cached_data->mh_quoted_mb == NULL) {
res = MAIL_ERROR_BAD_STATE;
goto err;
}
mh_flags_store_process(cached_data->mh_flags_directory,
cached_data->mh_quoted_mb,
cached_data->mh_flags_store);
folder = get_mh_cur_folder(session);
if (folder == NULL) {
res = MAIL_ERROR_BAD_STATE;
goto err;
}
snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
cached_data->mh_flags_directory, cached_data->mh_quoted_mb, FLAGS_NAME);
r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
if (r < 0) {
res = MAIL_ERROR_FILE;
goto err;
}
mmapstr = mmap_string_new("");
if (mmapstr == NULL) {
res = MAIL_ERROR_MEMORY;
goto close_db_flags;
}
for(i = 0 ; i < carray_count(folder->fl_msgs_tab) ; i++) {
struct mailmh_msg_info * mh_info;
struct mail_flags * flags;
mh_info = carray_get(folder->fl_msgs_tab, i);
if (mh_info == NULL)
continue;
r = mhdriver_get_cached_flags(cache_db_flags, mmapstr,
session, mh_info->msg_index, &flags);
if (r != MAIL_NO_ERROR)
continue;
if (flags->fl_flags & MAIL_FLAG_DELETED) {
r = mailmh_folder_remove_message(folder, mh_info->msg_index);
}
mail_flags_free(flags);
}
mmap_string_free(mmapstr);
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
mailmh_folder_update(folder);
return MAIL_NO_ERROR;
close_db_flags:
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
err:
return res;
}
static int mhdriver_cached_status_folder(mailsession * session, const char * mb,
uint32_t * result_messages,
uint32_t * result_recent,
uint32_t * result_unseen)
{
struct mailmh_folder * folder;
int res;
char filename_flags[PATH_MAX];
struct mail_cache_db * cache_db_flags;
MMAPString * mmapstr;
struct mh_cached_session_state_data * cached_data;
unsigned int i;
int r;
uint32_t count;
uint32_t recent;
uint32_t unseen;
r = mhdriver_cached_select_folder(session, mb);
if (r != MAIL_NO_ERROR) {
res = r;
goto err;
}
count = 0;
recent = 0;
unseen = 0;
folder = get_mh_cur_folder(session);
if (folder == NULL) {
res = MAIL_ERROR_BAD_STATE;
goto err;
}
cached_data = get_cached_data(session);
if (cached_data->mh_quoted_mb == NULL) {
res = MAIL_ERROR_BAD_STATE;
goto err;
}
snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
cached_data->mh_flags_directory,
cached_data->mh_quoted_mb, FLAGS_NAME);
r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
if (r < 0) {
res = MAIL_ERROR_FILE;
goto err;
}
mmapstr = mmap_string_new("");
if (mmapstr == NULL) {
res = MAIL_ERROR_MEMORY;
goto close_db_flags;
}
for(i = 0 ; i < carray_count(folder->fl_msgs_tab) ; i++) {
struct mailmh_msg_info * mh_info;
struct mail_flags * flags;
mh_info = carray_get(folder->fl_msgs_tab, i);
if (mh_info == NULL)
continue;
count ++;
r = mhdriver_get_cached_flags(cache_db_flags, mmapstr,
session, mh_info->msg_index,
&flags);
if (r != MAIL_NO_ERROR) {
recent ++;
unseen ++;
continue;
}
if ((flags->fl_flags & MAIL_FLAG_NEW) != 0) {
recent ++;
}
if ((flags->fl_flags & MAIL_FLAG_SEEN) == 0) {
unseen ++;
}
mail_flags_free(flags);
}
mmap_string_free(mmapstr);
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
* result_messages = count;
* result_recent = recent;
* result_unseen = unseen;
return MAIL_NO_ERROR;
close_db_flags:
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
err:
return res;
}
static int mhdriver_cached_messages_number(mailsession * session, const char * mb,
uint32_t * result)
{
return mailsession_messages_number(get_ancestor(session), mb, result);
}
static int mhdriver_cached_recent_number(mailsession * session, const char * mb,
uint32_t * result)
{
uint32_t messages;
uint32_t recent;
uint32_t unseen;
int r;
r = mhdriver_cached_status_folder(session, mb, &messages, &recent, &unseen);
if (r != MAIL_NO_ERROR)
return r;
* result = recent;
return MAIL_NO_ERROR;
}
static int mhdriver_cached_unseen_number(mailsession * session, const char * mb,
uint32_t * result)
{
uint32_t messages;
uint32_t recent;
uint32_t unseen;
int r;
r = mhdriver_cached_status_folder(session, mb, &messages, &recent, &unseen);
if (r != MAIL_NO_ERROR)
return r;
* result = recent;
return MAIL_NO_ERROR;
}
static int mhdriver_cached_list_folders(mailsession * session, const char * mb,
struct mail_list ** result)
{
return mailsession_list_folders(get_ancestor(session), mb, result);
}
static int mhdriver_cached_lsub_folders(mailsession * session, const char * mb,
struct mail_list ** result)
{
return mailsession_lsub_folders(get_ancestor(session), mb, result);
}
static int mhdriver_cached_subscribe_folder(mailsession * session, const char * mb)
{
return mailsession_subscribe_folder(get_ancestor(session), mb);
}
static int mhdriver_cached_unsubscribe_folder(mailsession * session,
const char * mb)
{
return mailsession_unsubscribe_folder(get_ancestor(session), mb);
}
/* messages operations */
static int mhdriver_cached_append_message(mailsession * session,
const char * message, size_t size)
{
return mhdriver_cached_append_message_flags(session,
message, size, NULL);
}
static int mhdriver_cached_append_message_flags(mailsession * session,
const char * message, size_t size, struct mail_flags * flags)
{
int r;
struct mailmh_folder * folder;
struct mailmh_msg_info * msg_info;
chashdatum key;
chashdatum value;
uint32_t uid;
struct mh_cached_session_state_data * data;
char filename_flags[PATH_MAX];
struct mail_cache_db * cache_db_flags;
MMAPString * mmapstr;
char keyname[PATH_MAX];
folder = get_mh_cur_folder(session);
if (folder == NULL)
return MAIL_ERROR_BAD_STATE;
r = mailmh_folder_add_message_uid(folder,
message, size, &uid);
switch (r) {
case MAILMH_ERROR_FILE:
return MAIL_ERROR_DISKSPACE;
case MAILMH_NO_ERROR:
break;
default:
return mhdriver_mh_error_to_mail_error(r);
}
if (flags == NULL)
goto exit;
key.data = &uid;
key.len = sizeof(uid);
r = chash_get(folder->fl_msgs_hash, &key, &value);
if (r < 0)
return MAIL_ERROR_CACHE_MISS;
msg_info = value.data;
data = get_cached_data(session);
snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
data->mh_flags_directory, data->mh_quoted_mb, FLAGS_NAME);
r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
if (r < 0)
goto exit;
mmapstr = mmap_string_new("");
if (mmapstr == NULL)
goto close_db_flags;
snprintf(keyname, PATH_MAX, "%u-%lu-%lu-flags",
uid, (unsigned long) msg_info->msg_mtime,
(unsigned long) msg_info->msg_size);
r = mhdriver_write_cached_flags(cache_db_flags, mmapstr, keyname, flags);
mmap_string_free(mmapstr);
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
if (r != MAIL_NO_ERROR)
goto exit;
return MAIL_NO_ERROR;
close_db_flags:
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
exit:
return MAIL_NO_ERROR;
}
static int mhdriver_cached_copy_message(mailsession * session,
uint32_t num, const char * mb)
{
return mailsession_copy_message(get_ancestor(session), num, mb);
}
static int mhdriver_cached_remove_message(mailsession * session, uint32_t num)
{
return mailsession_remove_message(get_ancestor(session), num);
}
static int mhdriver_cached_move_message(mailsession * session,
uint32_t num, const char * mb)
{
return mailsession_move_message(get_ancestor(session), num, mb);
}
static int
mhdriver_cached_get_messages_list(mailsession * session,
struct mailmessage_list ** result)
{
struct mailmh_folder * folder;
int res;
folder = get_mh_cur_folder(session);
if (folder == NULL) {
res = MAIL_ERROR_BAD_STATE;
goto err;
}
return mh_get_messages_list(folder, session,
mh_cached_message_driver, result);
err:
return res;
}
static int
get_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
mailsession * session, uint32_t num,
struct mailimf_fields ** result)
{
int r;
char keyname[PATH_MAX];
struct mailimf_fields * fields;
int res;
struct mailmh_folder * folder;
struct mailmh_msg_info * msg_info;
chashdatum key;
chashdatum data;
folder = get_mh_cur_folder(session);
#if 0
msg_info = cinthash_find(mh_data->mh_cur_folder->fl_msgs_hash, num);
if (msg_info == NULL)
return MAIL_ERROR_CACHE_MISS;
#endif
key.data = #
key.len = sizeof(num);
r = chash_get(folder->fl_msgs_hash, &key, &data);
if (r < 0)
return MAIL_ERROR_CACHE_MISS;
msg_info = data.data;
snprintf(keyname, PATH_MAX, "%u-%lu-%lu-envelope",
num, (unsigned long) msg_info->msg_mtime,
(unsigned long) msg_info->msg_size);
r = generic_cache_fields_read(cache_db, mmapstr, keyname, &fields);
if (r != MAIL_NO_ERROR) {
res = r;
goto err;
}
* result = fields;
return MAIL_NO_ERROR;
err:
return res;
}
static int
write_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
mailsession * session, uint32_t num,
struct mailimf_fields * fields)
{
int r;
char keyname[PATH_MAX];
int res;
struct mailmh_folder * folder;
chashdatum key;
chashdatum data;
struct mailmh_msg_info * msg_info;
folder = get_mh_cur_folder(session);
#if 0
msg_info = cinthash_find(mh_data->mh_cur_folder->fl_msgs_hash, num);
if (msg_info == NULL) {
res = MAIL_ERROR_CACHE_MISS;
goto err;
}
#endif
key.data = #
key.len = sizeof(num);
r = chash_get(folder->fl_msgs_hash, &key, &data);
if (r < 0)
return MAIL_ERROR_CACHE_MISS;
msg_info = data.data;
snprintf(keyname, PATH_MAX, "%u-%lu-%lu-envelope",
num, (unsigned long) msg_info->msg_mtime,
(unsigned long) msg_info->msg_size);
r = generic_cache_fields_write(cache_db, mmapstr, keyname, fields);
if (r != MAIL_NO_ERROR) {
res = r;
goto err;
}
return MAIL_NO_ERROR;
err:
return res;
}
static int
mhdriver_cached_get_envelopes_list(mailsession * session,
struct mailmessage_list * env_list)
{
int r;
unsigned int i;
char filename_env[PATH_MAX];
char filename_flags[PATH_MAX];
struct mail_cache_db * cache_db_env;
struct mail_cache_db * cache_db_flags;
MMAPString * mmapstr;
int res;
struct mh_cached_session_state_data * cached_data;
cached_data = get_cached_data(session);
if (cached_data->mh_quoted_mb == NULL) {
res = MAIL_ERROR_BAD_STATE;
goto err;
}
mh_flags_store_process(cached_data->mh_flags_directory,
cached_data->mh_quoted_mb,
cached_data->mh_flags_store);
mmapstr = mmap_string_new("");
if (mmapstr == NULL) {
res = MAIL_ERROR_MEMORY;
goto err;
}
snprintf(filename_env, PATH_MAX, "%s/%s/%s",
cached_data->mh_cache_directory,
cached_data->mh_quoted_mb, ENV_NAME);
r = mail_cache_db_open_lock(filename_env, &cache_db_env);
if (r < 0) {
res = MAIL_ERROR_MEMORY;
goto free_mmapstr;
}
snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
cached_data->mh_flags_directory, cached_data->mh_quoted_mb, FLAGS_NAME);
r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
if (r < 0) {
res = MAIL_ERROR_MEMORY;
goto close_db_env;
}
/* fill with cached */
for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
mailmessage * msg;
struct mailimf_fields * fields;
struct mail_flags * flags;
msg = carray_get(env_list->msg_tab, i);
if (msg->msg_fields == NULL) {
r = get_cached_envelope(cache_db_env, mmapstr,
msg->msg_session, msg->msg_index, &fields);
if (r == MAIL_NO_ERROR) {
msg->msg_cached = TRUE;
msg->msg_fields = fields;
}
}
if (msg->msg_flags == NULL) {
r = mhdriver_get_cached_flags(cache_db_flags, mmapstr,
session, msg->msg_index, &flags);
if (r == MAIL_NO_ERROR) {
msg->msg_flags = flags;
}
}
}
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
mail_cache_db_close_unlock(filename_env, cache_db_env);
r = mailsession_get_envelopes_list(get_ancestor(session), env_list);
if (r != MAIL_NO_ERROR) {
res = r;
goto free_mmapstr;
}
r = mail_cache_db_open_lock(filename_env, &cache_db_env);
if (r < 0) {
res = MAIL_ERROR_MEMORY;
goto free_mmapstr;
}
r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
if (r < 0) {
res = MAIL_ERROR_MEMORY;
goto close_db_env;
}
/* add flags */
for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
mailmessage * msg;
msg = carray_get(env_list->msg_tab, i);
if (msg->msg_flags == NULL)
msg->msg_flags = mail_flags_new_empty();
}
/* must write cache */
for(i = 0 ; i < carray_count(env_list->msg_tab) ; i ++) {
mailmessage * msg;
msg = carray_get(env_list->msg_tab, i);
if (msg->msg_fields != NULL) {
if (!msg->msg_cached) {
r = write_cached_envelope(cache_db_env, mmapstr,
session, msg->msg_index, msg->msg_fields);
}
}
if (msg->msg_flags != NULL) {
r = mhdriver_write_cached_flags(cache_db_flags, mmapstr,
msg->msg_uid, msg->msg_flags);
}
}
/* flush cache */
maildriver_cache_clean_up(cache_db_env, cache_db_flags, env_list);
mail_cache_db_close_unlock(filename_flags, cache_db_flags);
mail_cache_db_close_unlock(filename_env, cache_db_env);
mmap_string_free(mmapstr);
return MAIL_NO_ERROR;
close_db_env:
mail_cache_db_close_unlock(filename_env, cache_db_env);
free_mmapstr:
mmap_string_free(mmapstr);
err:
return res;
}
static int mhdriver_cached_get_message(mailsession * session,
uint32_t num, mailmessage ** result)
{
mailmessage * msg_info;
int r;
msg_info = mailmessage_new();
if (msg_info == NULL)
return MAIL_ERROR_MEMORY;
r = mailmessage_init(msg_info, session, mh_cached_message_driver, num, 0);
if (r != MAIL_NO_ERROR)
return r;
* result = msg_info;
return MAIL_NO_ERROR;
}
static int mhdriver_cached_get_message_by_uid(mailsession * session,
const char * uid,
mailmessage ** result)
{
uint32_t index;
char *p;
struct mailmh_msg_info * mh_msg_info;
struct mailmh_folder * folder;
time_t mtime;
char * mtime_p;
chashdatum key;
chashdatum data;
int r;
if (uid == NULL)
return MAIL_ERROR_INVAL;
index = strtoul(uid, &p, 10);
if (p == uid || * p != '-')
return MAIL_ERROR_INVAL;
folder = get_mh_cur_folder(session);
mh_msg_info = NULL;
key.data = &index;
key.len = sizeof(index);
r = chash_get(folder->fl_msgs_hash, &key, &data);
if (r < 0)
return MAIL_ERROR_MSG_NOT_FOUND;
mh_msg_info = data.data;
mtime_p = p + 1;
mtime = strtoul(mtime_p, &p, 10);
if ((* p == '-') && (mtime == mh_msg_info->msg_mtime)) {
size_t size;
char *size_p;
size_p = p + 1;
size = strtoul(size_p, &p, 10);
if ((* p == '\0') && (size == mh_msg_info->msg_size))
return mhdriver_cached_get_message(session, index, result);
}
else if (*p != '-') {
return MAIL_ERROR_INVAL;
}
return MAIL_ERROR_MSG_NOT_FOUND;
}
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