/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-cache-folder.c : class for a cache folder */
/*
* Authors:
* Dan Winship <danw@helixcode.com>
*
* Copyright (C) 2000 Helix Code, Inc. (www.helixcode.com)
*
* 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
*/
/*
* Notes on the cache provider:
*
* We require that the remote folder have persistent UIDs, and nothing
* else. We require that the local store folder have persistent UIDs
* and summary capability.
*
* If the remote folder does not have summary capability, we will need
* to sync any new messages over to the local folder when the folder
* is opened or when it changes. If the remote folder does have
* summary capability, we can be more relaxed about doing this.
*
* If the remote folder has search capability, we will use it, at
* least when the folder isn't synced. Otherwise if the local folder
* has search capability, we will use that (but it will require
* syncing the remote folder locally to use). Otherwise the cache
* folder won't have search capability.
*
* CamelCacheFolder UIDs are remote UIDs, because we need to be able
* to return a complete list of them at get_uids time, and the
* messages might not all be present in the local folder, and we can't
* predict what UIDs will be assigned to them when they are cached
* there. We keep hash tables mapping remote to local UIDs and vice
* versa, and a map file to cache this information between sessions.
* The maps must always be 100% accurate.
*
* The messages in the local folder may not be in the same order as
* the messages in the remote folder.
*
*
* Many operations on the local folder are done with a NULL
* CamelException, because having them fail only results in efficiency
* problems, not actual permanent failures. (Eg, get_message will
* try to append the message to the local folder, but doesn't check
* for failure, because it already has the message to pass back to the
* user.)
*/
#include "camel-cache-folder.h"
#include "camel-cache-store.h"
#include <camel/camel-exception.h>
#include <camel/camel-medium.h>
#define CF_CLASS(so) CAMEL_FOLDER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
static CamelFolderClass *folder_class = NULL;
static void init (CamelFolder *folder, CamelStore *parent_store,
CamelFolder *parent_folder, const gchar *name,
gchar *separator, gboolean path_begins_with_sep,
CamelException *ex);
static void refresh_info (CamelFolder *folder, CamelException *ex);
static void cache_sync (CamelFolder *folder, gboolean expunge,
CamelException *ex);
static void expunge (CamelFolder *folder, CamelException *ex);
static gint get_message_count (CamelFolder *folder);
static void append_message (CamelFolder *folder, CamelMimeMessage *message,
const CamelMessageInfo *info, CamelException *ex);
static guint32 get_message_flags (CamelFolder *folder, const char *uid);
static void set_message_flags (CamelFolder *folder, const char *uid,
guint32 flags, guint32 set);
static gboolean get_message_user_flag (CamelFolder *folder, const char *uid,
const char *name);
static void set_message_user_flag (CamelFolder *folder, const char *uid,
const char *name, gboolean value);
static const char *get_message_user_tag (CamelFolder *folder, const char *uid,
const char *name);
static void set_message_user_tag (CamelFolder *folder, const char *uid,
const char *name, const char *value);
static CamelMimeMessage *get_message (CamelFolder *folder,
const gchar *uid,
CamelException *ex);
static GPtrArray *get_uids (CamelFolder *folder);
static GPtrArray *get_summary (CamelFolder *folder);
static GPtrArray *get_subfolder_names (CamelFolder *folder);
static void free_subfolder_names (CamelFolder *folder, GPtrArray *subfolders);
static GPtrArray *search_by_expression (CamelFolder *folder,
const char *expression,
CamelException *ex);
static const CamelMessageInfo *get_message_info (CamelFolder *folder,
const char *uid);
static void copy_message_to (CamelFolder *source, const char *uid,
CamelFolder *destination, CamelException *ex);
static void move_message_to (CamelFolder *source, const char *uid,
CamelFolder *destination, CamelException *ex);
static void finalize (CamelObject *object);
static void
camel_cache_folder_class_init (CamelCacheFolderClass *camel_cache_folder_class)
{
CamelFolderClass *camel_folder_class =
CAMEL_FOLDER_CLASS (camel_cache_folder_class);
folder_class = CAMEL_FOLDER_CLASS (camel_type_get_global_classfuncs (camel_folder_get_type ()));
/* virtual method overload */
camel_folder_class->init = init;
camel_folder_class->refresh_info = refresh_info;
camel_folder_class->sync = cache_sync;
camel_folder_class->expunge = expunge;
camel_folder_class->get_message_count = get_message_count;
camel_folder_class->append_message = append_message;
camel_folder_class->get_message_flags = get_message_flags;
camel_folder_class->set_message_flags = set_message_flags;
camel_folder_class->get_message_user_flag = get_message_user_flag;
camel_folder_class->set_message_user_flag = set_message_user_flag;
camel_folder_class->get_message_user_tag = get_message_user_tag;
camel_folder_class->set_message_user_tag = set_message_user_tag;
camel_folder_class->get_message = get_message;
camel_folder_class->get_uids = get_uids;
camel_folder_class->free_uids = camel_folder_free_nop;
camel_folder_class->get_summary = get_summary;
camel_folder_class->free_summary = camel_folder_free_nop;
camel_folder_class->get_subfolder_names = get_subfolder_names;
camel_folder_class->free_subfolder_names = free_subfolder_names;
camel_folder_class->search_by_expression = search_by_expression;
camel_folder_class->get_message_info = get_message_info;
camel_folder_class->copy_message_to = copy_message_to;
camel_folder_class->move_message_to = move_message_to;
}
CamelType
camel_cache_folder_get_type (void)
{
static CamelType camel_cache_folder_type = CAMEL_INVALID_TYPE;
if (camel_cache_folder_type == CAMEL_INVALID_TYPE) {
camel_cache_folder_type = camel_type_register (
CAMEL_FOLDER_TYPE, "CamelCacheFolder",
sizeof (CamelCacheFolder),
sizeof (CamelCacheFolderClass),
(CamelObjectClassInitFunc) camel_cache_folder_class_init,
NULL,
NULL,
(CamelObjectFinalizeFunc) finalize);
}
return camel_cache_folder_type;
}
static void
cache_free_summary (CamelCacheFolder *cache_folder)
{
if (cache_folder->remote_summary) {
camel_folder_free_summary (cache_folder->remote,
cache_folder->summary);
} else {
int i;
for (i = 0; i < cache_folder->summary->len; i++) {
camel_message_info_free (
cache_folder->summary->pdata[i]);
}
g_ptr_array_free (cache_folder->summary, TRUE);
g_hash_table_destroy (cache_folder->summary_uids);
}
}
static void
finalize (CamelObject *object)
{
CamelCacheFolder *cache_folder = CAMEL_CACHE_FOLDER (object);
if (cache_folder->uids) {
camel_folder_free_uids (cache_folder->remote,
cache_folder->uids);
}
if (cache_folder->summary)
cache_free_summary (cache_folder);
if (cache_folder->uidmap)
camel_cache_map_destroy (cache_folder->uidmap);
camel_object_unref (CAMEL_OBJECT (cache_folder->local));
camel_object_unref (CAMEL_OBJECT (cache_folder->remote));
g_free (cache_folder->mapfile);
}
static void
update (CamelCacheFolder *cache_folder, CamelException *ex)
{
if (cache_folder->uids) {
camel_folder_free_uids (cache_folder->remote,
cache_folder->uids);
}
cache_folder->uids = camel_folder_get_uids (cache_folder->remote);
if (cache_folder->summary)
cache_free_summary (cache_folder);
if (cache_folder->remote_summary) {
cache_folder->summary =
camel_folder_get_summary (cache_folder->remote);
} else {
CamelMessageInfo *mi;
GPtrArray *lsummary;
const char *ruid;
int i;
if (!cache_folder->is_synced) {
camel_cache_folder_sync (cache_folder, ex);
if (camel_exception_is_set (ex))
return;
}
cache_folder->summary = g_ptr_array_new ();
cache_folder->summary_uids = g_hash_table_new (g_str_hash,
g_str_equal);
lsummary = camel_folder_get_summary (cache_folder->local);
/* For each local message, duplicate its info, replace
* the uid with the remote one, and add it to the
* uid->info cache.
*/
for (i = 0; i < lsummary->len; i++) {
mi = lsummary->pdata[i];
ruid = camel_cache_map_get_remote (cache_folder->uidmap, mi->uid);
if (!ruid) {
/* Stale message. Delete it from cache. */
camel_folder_delete_message (
cache_folder->local, mi->uid);
continue;
}
mi = g_new (CamelMessageInfo, 1);
camel_message_info_dup_to (lsummary->pdata[i], mi);
g_free (mi->uid);
mi->uid = g_strdup (ruid);
g_hash_table_insert (cache_folder->summary_uids,
mi->uid, mi);
}
camel_folder_free_summary (cache_folder->local, lsummary);
/* Now build the summary array in remote UID order. */
for (i = 0; i < cache_folder->uids->len; i++) {
mi = g_hash_table_lookup (cache_folder->summary_uids,
cache_folder->uids->pdata[i]);
g_ptr_array_add (cache_folder->summary, mi);
}
}
}
static void
init (CamelFolder *folder, CamelStore *parent_store,
CamelFolder *parent_folder, const gchar *name, gchar *separator,
gboolean path_begins_with_sep, CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
char *path;
CF_CLASS (folder)->init (folder, parent_store, parent_folder,
name, separator, path_begins_with_sep, ex);
if (camel_exception_is_set (ex))
return;
folder->permanent_flags =
camel_folder_get_permanent_flags (cache_folder->local);
folder->can_hold_folders = cache_folder->remote->can_hold_folders;
folder->can_hold_messages = cache_folder->remote->can_hold_messages;
folder->has_summary_capability = TRUE;
folder->has_search_capability =
camel_folder_has_search_capability (cache_folder->local) ||
camel_folder_has_search_capability (cache_folder->remote);
cache_folder->remote_summary =
camel_folder_has_summary_capability (cache_folder->remote);
/* Load UIDs, summary, etc. */
path = CAMEL_SERVICE (cache_folder->local->parent_store)->url->path;
cache_folder->mapfile = g_strdup_printf ("%s/%s.map", path, name);
cache_folder->uidmap = camel_cache_map_new ();
camel_cache_map_read (cache_folder->uidmap, cache_folder->mapfile, ex);
if (camel_exception_is_set (ex))
return;
update (cache_folder, ex);
return;
}
/* If the remote folder changes, cache the new messages if necessary,
* update the summary, and propagate the signal.
*/
static void
remote_folder_changed (CamelObject *remote_folder, gpointer type,
gpointer user_data)
{
CamelCacheFolder *cache_folder = user_data;
update (cache_folder, NULL);
camel_object_trigger_event (CAMEL_OBJECT (cache_folder),
"folder_changed", type);
}
/* If the local folder changes, it's because we just cached a message
* or expunged messages. Look for new messages and update the UID maps.
*/
static void
local_folder_changed (CamelObject *local, gpointer type, gpointer data)
{
CamelFolder *local_folder = CAMEL_FOLDER (local);
CamelCacheFolder *cache_folder = data;
CamelMimeMessage *msg;
GPtrArray *new_luids;
char *luid;
const char *ruid;
int i;
/* Get the updated list of local UIDs. For any that we didn't
* already know about, figure out the corresponding remote
* UID.
*/
new_luids = camel_folder_get_uids (local_folder);
for (i = 0; i < new_luids->len; i++) {
luid = new_luids->pdata[i];
if (!camel_cache_map_get_remote (cache_folder->uidmap, luid)) {
msg = camel_folder_get_message (local_folder,
luid, NULL);
if (!msg)
continue; /* Hrmph. */
ruid = camel_medium_get_header (CAMEL_MEDIUM (msg),
"X-Evolution-Remote-UID");
if (!ruid) {
/* How'd that get here? */
camel_folder_delete_message (local_folder,
luid);
continue;
}
camel_cache_map_update (cache_folder->uidmap,
luid, ruid);
}
}
camel_folder_free_uids (local_folder, new_luids);
/* FIXME: the uidmaps contain bad data now. */
}
/* DONE */
static void
refresh_info (CamelFolder *folder, CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
camel_folder_refresh_info (cache_folder->remote, ex);
}
/* DONE */
static void
cache_sync (CamelFolder *folder, gboolean expunge, CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
camel_folder_sync (cache_folder->remote, expunge, ex);
if (!camel_exception_is_set (ex)) {
camel_folder_sync (cache_folder->local, expunge, NULL);
camel_cache_map_write (cache_folder->uidmap,
cache_folder->mapfile, ex);
}
}
/* DONE */
static void
expunge (CamelFolder *folder, CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
camel_folder_expunge (cache_folder->remote, ex);
if (!camel_exception_is_set (ex))
camel_folder_expunge (cache_folder->local, NULL);
}
/* DONE */
static gint
get_message_count (CamelFolder *folder)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
return cache_folder->summary->len;
}
/* DONE */
static void
append_message (CamelFolder *folder, CamelMimeMessage *message,
const CamelMessageInfo *info, CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
/* We'd like to cache this locally as well, but we have no
* 100% reliable way to determine the UID assigned to the
* remote message, so we can't.
*/
camel_folder_append_message (cache_folder->remote, message, info, ex);
}
/* DONE */
static guint32
get_message_flags (CamelFolder *folder, const char *uid)
{
const CamelMessageInfo *mi;
mi = get_message_info (folder, uid);
g_return_val_if_fail (mi != NULL, 0);
return mi->flags;
}
/* DONE */
static void
set_message_flags (CamelFolder *folder, const char *uid,
guint32 flags, guint32 set)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
const char *luid;
luid = camel_cache_map_get_local (cache_folder->uidmap, uid);
if (luid) {
camel_folder_set_message_flags (cache_folder->local, luid,
flags, set);
}
camel_folder_set_message_flags (cache_folder->remote, uid, flags, set);
}
/* DONE */
static gboolean
get_message_user_flag (CamelFolder *folder, const char *uid, const char *name)
{
const CamelMessageInfo *mi;
mi = get_message_info (folder, uid);
g_return_val_if_fail (mi != NULL, 0);
return camel_flag_get ((CamelFlag **)&mi->user_flags, name);
}
/* DONE */
static void
set_message_user_flag (CamelFolder *folder, const char *uid,
const char *name, gboolean value)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
const char *luid;
luid = camel_cache_map_get_local (cache_folder->uidmap, uid);
if (luid) {
camel_folder_set_message_user_flag (cache_folder->local, luid,
name, value);
}
camel_folder_set_message_user_flag (cache_folder->remote, uid,
name, value);
}
/* DONE */
static const char *
get_message_user_tag (CamelFolder *folder, const char *uid, const char *name)
{
const CamelMessageInfo *mi;
mi = get_message_info (folder, uid);
g_return_val_if_fail (mi != NULL, NULL);
return camel_tag_get ((CamelTag **)&mi->user_tags, name);
}
/* DONE */
static void
set_message_user_tag (CamelFolder *folder, const char *uid,
const char *name, const char *value)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
const char *luid;
luid = camel_cache_map_get_local (cache_folder->uidmap, uid);
if (luid) {
camel_folder_set_message_user_tag (cache_folder->local, luid,
name, value);
}
camel_folder_set_message_user_tag (cache_folder->remote, uid,
name, value);
}
/* DONE */
static CamelMimeMessage *
get_message (CamelFolder *folder, const gchar *uid, CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
CamelMimeMessage *msg;
const CamelMessageInfo *info;
const char *luid;
/* Check if we have it cached first. */
luid = camel_cache_map_get_local (cache_folder->uidmap, uid);
if (luid) {
msg = camel_folder_get_message (cache_folder->local,
luid, NULL);
if (msg)
return msg;
/* Hm... Oh well. Update the map and try for real. */
camel_cache_map_remove (cache_folder->uidmap, NULL, uid);
}
/* OK. It's not cached. Get the remote message. */
msg = camel_folder_get_message (cache_folder->remote, uid, ex);
if (!msg)
return NULL;
info = camel_folder_get_message_info (cache_folder->remote, uid);
/* Add a header giving the remote UID and append it to the
* local folder. (This should eventually invoke
* local_folder_changed(), which will take care of updating
* the uidmaps.)
*/
camel_medium_add_header (CAMEL_MEDIUM (msg), "X-Evolution-Remote-UID",
uid);
camel_folder_append_message (cache_folder->local, msg, info, NULL);
return msg;
}
/* DONE */
static GPtrArray *
get_uids (CamelFolder *folder)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
return cache_folder->uids;
}
/* DONE */
static GPtrArray *
get_summary (CamelFolder *folder)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
return cache_folder->summary;
}
/* DONE */
static GPtrArray *
get_subfolder_names (CamelFolder *folder)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
return camel_folder_get_subfolder_names (cache_folder->remote);
}
/* DONE */
static void
free_subfolder_names (CamelFolder *folder, GPtrArray *subfolders)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
camel_folder_free_subfolder_names (cache_folder->remote, subfolders);
}
/* DONE */
static GPtrArray *
search_by_expression (CamelFolder *folder, const char *expression,
CamelException *ex)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
/* Search on the remote folder if we're not synced. */
if (!cache_folder->is_synced &&
camel_folder_has_search_capability (cache_folder->remote)) {
return camel_folder_search_by_expression (cache_folder->remote,
expression, ex);
} else {
GPtrArray *matches;
const char *ruid;
int i;
if (!cache_folder->is_synced)
camel_cache_folder_sync (cache_folder, ex);
if (camel_exception_is_set (ex))
return NULL;
matches = search_by_expression (cache_folder->local,
expression, ex);
if (camel_exception_is_set (ex))
return NULL;
/* Convert local uids to remote. */
for (i = 0; i < matches->len; i++) {
ruid = camel_cache_map_get_remote (cache_folder->uidmap,
matches->pdata[i]);
g_free (matches->pdata[i]);
matches->pdata[i] = g_strdup (ruid);
}
return matches;
}
}
/* DONE */
static const CamelMessageInfo *
get_message_info (CamelFolder *folder, const char *uid)
{
CamelCacheFolder *cache_folder = (CamelCacheFolder *)folder;
if (cache_folder->remote_summary) {
return camel_folder_get_message_info (cache_folder->remote,
uid);
} else
return g_hash_table_lookup (cache_folder->summary_uids, uid);
}
/* DONE */
static void
copy_message_to (CamelFolder *source, const char *uid,
CamelFolder *destination, CamelException *ex)
{
CamelCacheFolder *source_cache_folder = (CamelCacheFolder *)source;
CamelCacheFolder *dest_cache_folder = (CamelCacheFolder *)destination;
/* If we are here, we know that the folders have the same parent
* store, which implies their remote and local folders have the
* same parent store as well.
*/
if (CF_CLASS (source_cache_folder->remote)->copy_message_to !=
folder_class->copy_message_to) {
/* The remote store has a non-default copy method, so
* use it to avoid unnecessary network traffic.
*/
CF_CLASS (source_cache_folder->remote)->copy_message_to (
source_cache_folder->remote, uid,
dest_cache_folder->remote, ex);
} else {
/* The remote store uses the default copy method,
* meaning if we proxy the copy_message_to over to it,
* it will suck the message over the network. We may
* already have a local copy, and if we don't, we want
* to, and if we're going to have the message in
* memory, then we should get it into the destination
* cache too. So do this by hand.
*/
CamelMimeMessage *msg;
const CamelMessageInfo *info;
msg = get_message (source, uid, ex);
if (camel_exception_is_set (ex))
return;
info = camel_folder_get_message_info (source, uid);
camel_medium_remove_header (CAMEL_MEDIUM (msg),
"X-Evolution-Remote-UID");
append_message (destination, msg, info, ex);
}
}
/* DONE */
static void
move_message_to (CamelFolder *source, const char *uid,
CamelFolder *destination, CamelException *ex)
{
CamelCacheFolder *source_cache_folder = (CamelCacheFolder *)source;
CamelCacheFolder *dest_cache_folder = (CamelCacheFolder *)destination;
/* See comments in copy_message_to. */
if (CF_CLASS (source_cache_folder)->move_message_to !=
folder_class->move_message_to) {
CF_CLASS (source_cache_folder)->move_message_to (
source_cache_folder->remote, uid,
dest_cache_folder->remote, ex);
} else {
CamelMimeMessage *msg;
const CamelMessageInfo *info;
msg = get_message (source, uid, ex);
if (camel_exception_is_set (ex))
return;
info = camel_folder_get_message_info (source, uid);
camel_medium_remove_header (CAMEL_MEDIUM (msg),
"X-Evolution-Remote-UID");
append_message (destination, msg, info, ex);
if (!camel_exception_is_set (ex))
camel_folder_delete_message (source, uid);
}
}
CamelFolder *
camel_cache_folder_new (CamelStore *store, CamelFolder *parent,
CamelFolder *remote, CamelFolder *local,
CamelException *ex)
{
CamelCacheFolder *cache_folder;
CamelFolder *folder;
cache_folder = CAMEL_CACHE_FOLDER (camel_object_new (CAMEL_CACHE_FOLDER_TYPE));
folder = (CamelFolder *)cache_folder;
cache_folder->local = local;
camel_object_ref (CAMEL_OBJECT (local));
camel_object_hook_event (CAMEL_OBJECT (local), "folder_changed",
local_folder_changed, cache_folder);
cache_folder->remote = remote;
camel_object_ref (CAMEL_OBJECT (remote));
camel_object_hook_event (CAMEL_OBJECT (remote), "folder_changed",
remote_folder_changed, cache_folder);
/* XXX */
return folder;
}
void
camel_cache_folder_sync (CamelCacheFolder *cache_folder, CamelException *ex)
{
CamelMimeMessage *msg;
const char *ruid, *luid;
int lsize, i;
const CamelMessageInfo *info;
lsize = camel_folder_get_message_count (cache_folder->local);
camel_folder_freeze (cache_folder->local);
for (i = 0; i < cache_folder->uids->len; i++) {
ruid = cache_folder->uids->pdata[i];
luid = camel_cache_map_get_local (cache_folder->uidmap, ruid);
/* Don't re-copy messages we already have. */
if (luid &&
camel_folder_get_message_info (cache_folder->local, luid))
continue;
msg = camel_folder_get_message (cache_folder->remote,
ruid, ex);
if (camel_exception_is_set (ex))
return;
info = camel_folder_get_message_info (cache_folder->remote,
ruid);
camel_medium_add_header (CAMEL_MEDIUM (msg),
"X-Evolution-Remote-UID", ruid);
camel_folder_append_message (cache_folder->local, msg,
info, ex);
if (camel_exception_is_set (ex))
return;
}
camel_folder_thaw (cache_folder->local);
}
static void
get_mappings (CamelCacheFolder *cache_folder, int first, CamelException *ex)
{
GPtrArray *uids;
CamelMimeMessage *msg;
const char *ruid;
int i;
uids = camel_folder_get_uids (cache_folder->local);
for (i = first; i < uids->len; i++) {
msg = camel_folder_get_message (cache_folder->local,
uids->pdata[i], ex);
if (!msg)
break;
ruid = camel_medium_get_header (CAMEL_MEDIUM (msg),
"X-Evolution-Remote-UID");
camel_cache_map_add (cache_folder->uidmap,
uids->pdata[i], ruid);
}
camel_folder_free_uids (cache_folder->local, uids);
}