* src/folder.[ch]
[claws.git] / src / imap.c
index 4345162aa08db970bc1ed5a83faf8a9922bd3f76..a193a3df93535d898a9b1e8b9bcecd68cd3fbbb8 100644 (file)
        }                                                       \
 }
 
+struct _IMAPFolderItem
+{
+       FolderItem item;
+
+       guint lastuid;
+       GSList *uid_list;
+};
+
 static GList *session_list = NULL;
 
 static gint imap_cmd_count = 0;
@@ -77,6 +85,10 @@ static void imap_folder_init         (Folder         *folder,
                                         const gchar    *name,
                                         const gchar    *path);
 
+static FolderItem *imap_folder_item_new        (Folder         *folder);
+static void imap_folder_item_destroy   (Folder         *folder,
+                                        FolderItem     *item);
+
 static IMAPSession *imap_session_get   (Folder         *folder);
 
 static gint imap_scan_tree_recursive   (IMAPSession    *session,
@@ -271,8 +283,9 @@ static gchar *imap_locale_to_modified_utf7  (const gchar    *from);
 
 static gboolean imap_rename_folder_func                (GNode          *node,
                                                 gpointer        data);
-GSList *imap_get_num_list                      (Folder         *folder,
-                                                FolderItem     *item);
+gint imap_get_num_list                         (Folder         *folder,
+                                                FolderItem     *item,
+                                                GSList        **list);
 MsgInfo *imap_fetch_msginfo                    (Folder         *folder,
                                                 FolderItem     *item,
                                                 gint            num);
@@ -289,8 +302,15 @@ Folder *imap_folder_new(const gchar *name, const gchar *path)
        return folder;
 }
 
-void imap_folder_destroy(IMAPFolder *folder)
+void imap_folder_destroy(Folder *folder)
 {
+       gchar *dir;
+
+       dir = folder_get_path(folder);
+       if (is_dir_exist(dir))
+               remove_dir_recursive(dir);
+       g_free(dir);
+
        folder_remote_folder_destroy(REMOTE_FOLDER(folder));
 }
 
@@ -299,11 +319,13 @@ static void imap_folder_init(Folder *folder, const gchar *name,
 {
        folder->type = F_IMAP;
 
-       folder_remote_folder_init(folder, name, path);
+       folder_remote_folder_init((Folder *)folder, name, path);
 
 /*
        folder->get_msg_list        = imap_get_msg_list;
 */
+       folder->item_new              = imap_folder_item_new;
+       folder->item_destroy          = imap_folder_item_destroy;
        folder->fetch_msg             = imap_fetch_msg;
        folder->add_msg               = imap_add_msg;
        folder->move_msg              = imap_move_msg;
@@ -311,6 +333,7 @@ static void imap_folder_init(Folder *folder, const gchar *name,
        folder->copy_msg              = imap_copy_msg;
        folder->copy_msgs_with_dest   = imap_copy_msgs_with_dest;
        folder->remove_msg            = imap_remove_msg;
+       folder->remove_msgs           = imap_remove_msgs;
        folder->remove_all_msg        = imap_remove_all_msg;
        folder->is_msg_changed        = imap_is_msg_changed;
 /*
@@ -321,13 +344,16 @@ static void imap_folder_init(Folder *folder, const gchar *name,
        folder->create_folder         = imap_create_folder;
        folder->rename_folder         = imap_rename_folder;
        folder->remove_folder         = imap_remove_folder;
+       folder->destroy               = imap_folder_destroy;
        folder->check_msgnum_validity = imap_check_msgnum_validity;
 
        folder->get_num_list          = imap_get_num_list;
        folder->fetch_msginfo         = imap_fetch_msginfo;
+       
+       ((IMAPFolder *)folder)->selected_folder = NULL;
 }
 
-FolderItem *imap_folder_item_new()
+static FolderItem *imap_folder_item_new(Folder *folder)
 {
        IMAPFolderItem *item;
        
@@ -338,12 +364,14 @@ FolderItem *imap_folder_item_new()
        return (FolderItem *)item;
 }
 
-void imap_folder_item_destroy(FolderItem *_item)
+static void imap_folder_item_destroy(Folder *folder, FolderItem *_item)
 {
        IMAPFolderItem *item = (IMAPFolderItem *)_item;
 
        g_return_if_fail(item != NULL);
        g_slist_free(item->uid_list);
+
+       g_free(_item);
 }
 
 static gboolean imap_reset_uid_lists_func(GNode *node, gpointer data)
@@ -391,6 +419,8 @@ static IMAPSession *imap_session_get(Folder *folder)
                        imap_parse_namespace(IMAP_SESSION(rfolder->session),
                                             IMAP_FOLDER(folder));
                        rfolder->session->last_access_time = time(NULL);
+                       g_free(((IMAPFolder *)folder)->selected_folder);
+                       ((IMAPFolder *)folder)->selected_folder = NULL;
                        imap_reset_uid_lists(folder);
                }
                statusbar_pop_all();
@@ -421,6 +451,8 @@ static IMAPSession *imap_session_get(Folder *folder)
                if (rfolder->session) {
                        imap_parse_namespace(IMAP_SESSION(rfolder->session),
                                             IMAP_FOLDER(folder));
+                       g_free(((IMAPFolder *)folder)->selected_folder);
+                       ((IMAPFolder *)folder)->selected_folder = NULL;
                        imap_reset_uid_lists(folder);
                }
        }
@@ -502,6 +534,7 @@ Session *imap_session_new(const PrefsAccount *account)
        }
 
        session = g_new(IMAPSession, 1);
+
        SESSION(session)->type             = SESSION_IMAP;
        SESSION(session)->server           = g_strdup(account->recv_server);
        SESSION(session)->sock             = imap_sock;
@@ -509,6 +542,9 @@ Session *imap_session_new(const PrefsAccount *account)
        SESSION(session)->phase            = SESSION_READY;
        SESSION(session)->last_access_time = time(NULL);
        SESSION(session)->data             = NULL;
+
+       SESSION(session)->destroy          = imap_session_destroy;
+
        session->mbox = NULL;
 
        session_list = g_list_append(session_list, session);
@@ -516,12 +552,12 @@ Session *imap_session_new(const PrefsAccount *account)
        return SESSION(session);
 }
 
-void imap_session_destroy(IMAPSession *session)
+void imap_session_destroy(Session *session)
 {
-       sock_close(SESSION(session)->sock);
-       SESSION(session)->sock = NULL;
+       sock_close(session->sock);
+       session->sock = NULL;
 
-       g_free(session->mbox);
+       g_free(IMAP_SESSION(session)->mbox);
 
        session_list = g_list_remove(session_list, session);
 }
@@ -555,7 +591,7 @@ GSList *imap_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 
        if (!session) {
                mlist = procmsg_read_cache(item, FALSE);
-               item->last_num = procmsg_get_last_num_in_cache(mlist);
+               item->last_num = procmsg_get_last_num_in_msg_list(mlist);
                procmsg_set_flags(mlist, item);
                statusbar_pop_all();
                return mlist;
@@ -583,7 +619,7 @@ GSList *imap_get_msg_list(Folder *folder, FolderItem *item, gboolean use_cache)
 
                mlist = procmsg_read_cache(item, FALSE);
                procmsg_set_flags(mlist, item);
-               cache_last = procmsg_get_last_num_in_cache(mlist);
+               cache_last = procmsg_get_last_num_in_msg_list(mlist);
 
                /* calculating the range of envelope to get */
                if (item->mtime != uid_validity) {
@@ -648,7 +684,7 @@ gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid)
        g_free(path);
  
        if (is_file_exist(filename)) {
-               debug_print(_("message %d has been already cached.\n"), uid);
+               debug_print("message %d has been already cached.\n", uid);
                return filename;
        }
 
@@ -667,7 +703,7 @@ gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid)
                return NULL;
        }
 
-       debug_print(_("getting message %d...\n"), uid);
+       debug_print("getting message %d...\n", uid);
        ok = imap_cmd_fetch(SESSION(session)->sock, (guint32)uid, filename);
 
        statusbar_pop_all();
@@ -755,11 +791,11 @@ static gint imap_do_copy(Folder *folder, FolderItem *dest, MsgInfo *msginfo,
        destdir = imap_get_real_path(IMAP_FOLDER(folder), dest->path);
 
        if (remove_source)
-               debug_print(_("Moving message %s%c%d to %s ...\n"),
+               debug_print("Moving message %s%c%d to %s ...\n",
                            msginfo->folder->path, G_DIR_SEPARATOR,
                            msginfo->msgnum, destdir);
        else
-               debug_print(_("Copying message %s%c%d to %s ...\n"),
+               debug_print("Copying message %s%c%d to %s ...\n",
                            msginfo->folder->path, G_DIR_SEPARATOR,
                            msginfo->msgnum, destdir);
 
@@ -808,11 +844,11 @@ static gint imap_do_copy_msgs_with_dest(Folder *folder, FolderItem *dest,
                }
 
                if (remove_source)
-                       debug_print(_("Moving message %s%c%d to %s ...\n"),
+                       debug_print("Moving message %s%c%d to %s ...\n",
                                    msginfo->folder->path, G_DIR_SEPARATOR,
                                    msginfo->msgnum, destdir);
                else
-                       debug_print(_("Copying message %s%c%d to %s ...\n"),
+                       debug_print("Copying message %s%c%d to %s ...\n",
                                    msginfo->folder->path, G_DIR_SEPARATOR,
                                    msginfo->msgnum, destdir);
 
@@ -944,6 +980,7 @@ gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
        guint32 uid_validity;
        gint ok;
        IMAPSession *session;
+       gchar *dir;
 
        g_return_val_if_fail(folder != NULL, -1);
        g_return_val_if_fail(folder->type == F_IMAP, -1);
@@ -974,6 +1011,69 @@ gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
                return ok;
        }
 
+       dir = folder_item_get_path(item);
+       if (is_dir_exist(dir))
+               remove_numbered_files(dir, uid, uid);
+       g_free(dir);
+
+       return IMAP_SUCCESS;
+}
+
+gint imap_remove_msgs(Folder *folder, FolderItem *item, GSList *msglist)
+{
+       gint exists, recent, unseen;
+       guint32 uid_validity;
+       gint ok;
+       IMAPSession *session;
+       gchar *dir;
+       MsgInfo *msginfo;
+       GSList *cur;
+       guint32 uid;
+
+       g_return_val_if_fail(folder != NULL, -1);
+       g_return_val_if_fail(folder->type == F_IMAP, -1);
+       g_return_val_if_fail(item != NULL, -1);
+       g_return_val_if_fail(msglist != NULL, -1);
+
+       session = imap_session_get(folder);
+       if (!session) return -1;
+
+       ok = imap_select(session, IMAP_FOLDER(folder), item->path,
+                        &exists, &recent, &unseen, &uid_validity);
+       statusbar_pop_all();
+       if (ok != IMAP_SUCCESS)
+               return ok;
+
+       for (cur = msglist; cur != NULL; cur = cur->next) {
+               msginfo = (MsgInfo *)cur->data;
+               uid = msginfo->msgnum;
+               ok = imap_set_message_flags
+                       (IMAP_SESSION(REMOTE_FOLDER(folder)->session),
+                        uid, uid, IMAP_FLAG_DELETED, TRUE);
+               statusbar_pop_all();
+               if (ok != IMAP_SUCCESS) {
+                       log_warning(_("can't set deleted flags: %d\n"), uid);
+                       return ok;
+               }
+       }
+
+       ok = imap_cmd_expunge(SESSION(session)->sock);
+       statusbar_pop_all();
+       if (ok != IMAP_SUCCESS) {
+               log_warning(_("can't expunge\n"));
+               return ok;
+       }
+
+       dir = folder_item_get_path(item);
+       if (is_dir_exist(dir)) {
+               for (cur = msglist; cur != NULL; cur = cur->next) {
+                       msginfo = (MsgInfo *)cur->data;
+                       uid = msginfo->msgnum;
+                       remove_numbered_files(dir, uid, uid);
+               }
+       }
+       g_free(dir);
        return IMAP_SUCCESS;
 }
 
@@ -983,6 +1083,7 @@ gint imap_remove_all_msg(Folder *folder, FolderItem *item)
        guint32 uid_validity;
        gint ok;
        IMAPSession *session;
+       gchar *dir;
 
        g_return_val_if_fail(folder != NULL, -1);
        g_return_val_if_fail(item != NULL, -1);
@@ -1014,6 +1115,11 @@ gint imap_remove_all_msg(Folder *folder, FolderItem *item)
                return ok;
        }
 
+       dir = folder_item_get_path(item);
+       if (is_dir_exist(dir))
+               remove_all_numbered_files(dir);
+       g_free(dir);
+
        return IMAP_SUCCESS;
 }
 
@@ -1060,7 +1166,15 @@ void imap_scan_tree(Folder *folder)
        g_return_if_fail(folder->account != NULL);
 
        session = imap_session_get(folder);
-       if (!session) return;
+       if (!session) {
+               if (!folder->node) {
+                       folder_tree_destroy(folder);
+                       item = folder_item_new(folder, folder->name, NULL);
+                       item->folder = folder;
+                       folder->node = g_node_new(item);
+               }
+               return;
+       }
 
        if (folder->account->imap_dir && *folder->account->imap_dir) {
                Xstrdup_a(root_folder, folder->account->imap_dir, return);
@@ -1623,11 +1737,12 @@ static GSList *imap_delete_cached_messages(GSList *mlist, FolderItem *item,
        g_return_val_if_fail(item->folder != NULL, mlist);
        g_return_val_if_fail(item->folder->type == F_IMAP, mlist);
 
-       debug_print(_("Deleting cached messages %u - %u ... "),
+       debug_print("Deleting cached messages %u - %u ... ",
                    first_uid, last_uid);
 
        dir = folder_item_get_path(item);
-       remove_numbered_files(dir, first_uid, last_uid);
+       if (is_dir_exist(dir))
+               remove_numbered_files(dir, first_uid, last_uid);
        g_free(dir);
 
        for (cur = mlist; cur != NULL; ) {
@@ -1643,7 +1758,7 @@ static GSList *imap_delete_cached_messages(GSList *mlist, FolderItem *item,
                cur = next;
        }
 
-       debug_print(_("done.\n"));
+       debug_print("done.\n");
 
        return mlist;
 }
@@ -1656,13 +1771,14 @@ static void imap_delete_all_cached_messages(FolderItem *item)
        g_return_if_fail(item->folder != NULL);
        g_return_if_fail(item->folder->type == F_IMAP);
 
-       debug_print(_("Deleting all cached messages... "));
+       debug_print("Deleting all cached messages...\n");
 
        dir = folder_item_get_path(item);
-       remove_all_numbered_files(dir);
+       if (is_dir_exist(dir))
+               remove_all_numbered_files(dir);
        g_free(dir);
 
-       debug_print(_("done.\n"));
+       debug_print("done.\n");
 }
 
 #if USE_SSL
@@ -2250,6 +2366,9 @@ static gint imap_select(IMAPSession *session, IMAPFolder *folder,
                session->mbox = g_strdup(path);
        g_free(real_path);
 
+       g_free(folder->selected_folder);
+       folder->selected_folder = g_strdup(path);
+       
        return ok;
 }
 
@@ -3083,39 +3202,31 @@ static gboolean imap_rename_folder_func(GNode *node, gpointer data)
        return FALSE;
 }
 
-GSList *imap_get_num_list(Folder *folder, FolderItem *_item)
+gint imap_get_num_list(Folder *folder, FolderItem *_item, GSList **msgnum_list)
 {
        IMAPFolderItem *item = (IMAPFolderItem *)_item;
        IMAPSession *session;
-       GSList *msgnum_list = NULL;
-       gint i, lastuid_old;
+       gint i, lastuid_old, nummsgs = 0;
        gint ok, exists = 0, recent = 0, unseen = 0;
        guint32 uid_validity = 0;
        GPtrArray *argbuf;
        gchar *cmdbuf = NULL;
+       gchar *dir;
        
-       g_return_val_if_fail(folder != NULL, NULL);
-       g_return_val_if_fail(item != NULL, NULL);
-       g_return_val_if_fail(item->item.path != NULL, NULL);
-       g_return_val_if_fail(folder->type == F_IMAP, NULL);
-       g_return_val_if_fail(folder->account != NULL, NULL);
+       g_return_val_if_fail(folder != NULL, -1);
+       g_return_val_if_fail(item != NULL, -1);
+       g_return_val_if_fail(item->item.path != NULL, -1);
+       g_return_val_if_fail(folder->type == F_IMAP, -1);
+       g_return_val_if_fail(folder->account != NULL, -1);
 
        session = imap_session_get(folder);
-       g_return_val_if_fail(session != NULL, NULL);
+       g_return_val_if_fail(session != NULL, -1);
 
        ok = imap_select(session, IMAP_FOLDER(folder), item->item.path,
                         &exists, &recent, &unseen, &uid_validity);
        if (ok != IMAP_SUCCESS)
-               return NULL;
+               return -1;
 
-       if(item->item.mtime != uid_validity) {
-               item->lastuid = 0;
-               g_slist_free(item->uid_list);
-               item->uid_list = NULL;
-               
-               item->item.mtime = uid_validity;
-       }
-       
        argbuf = g_ptr_array_new();
        if(item->lastuid) {
                cmdbuf = g_strdup_printf("UID FETCH %d:* (UID)", (item->lastuid + 1));
@@ -3128,19 +3239,20 @@ GSList *imap_get_num_list(Folder *folder, FolderItem *_item)
        if (ok != IMAP_SUCCESS) {
                ptr_array_free_strings(argbuf);
                g_ptr_array_free(argbuf, TRUE);
-               return NULL;
+               return -1;
        }
 
        lastuid_old = item->lastuid;
-       msgnum_list = g_slist_copy(item->uid_list);
-       debug_print("Got %d uids from cache\n", g_slist_length(msgnum_list));
+       *msgnum_list = g_slist_copy(item->uid_list);
+       debug_print("Got %d uids from cache\n", g_slist_length(item->uid_list));
        for(i = 0; i < argbuf->len; i++) {
                int ret, msgidx, msgnum;
        
                if((ret = sscanf(g_ptr_array_index(argbuf, i), "%d FETCH (UID %d)", &msgidx, &msgnum)) == 2) {
                        if(msgnum > lastuid_old) {
-                               msgnum_list = g_slist_prepend(msgnum_list, GINT_TO_POINTER(msgnum));
+                               *msgnum_list = g_slist_prepend(*msgnum_list, GINT_TO_POINTER(msgnum));
                                item->uid_list = g_slist_prepend(item->uid_list, GINT_TO_POINTER(msgnum));
+                               nummsgs++;
 
                                if(msgnum > item->lastuid)
                                        item->lastuid = msgnum;
@@ -3148,30 +3260,45 @@ GSList *imap_get_num_list(Folder *folder, FolderItem *_item)
                }
        }
 
-       return msgnum_list;
+       dir = folder_item_get_path((FolderItem *)item);
+       debug_print("removing old messages from %s\n", dir);
+       remove_numbered_files_not_in_list(dir, *msgnum_list);
+       g_free(dir);
+
+       return nummsgs;
 }
 
-MsgInfo *imap_fetch_msginfo(Folder *folder, FolderItem *item, gint num)
+MsgInfo *imap_fetch_msginfo(Folder *_folder, FolderItem *item, gint num)
 {
+       IMAPFolder *folder = (IMAPFolder *)_folder;
        gchar *tmp;
        IMAPSession *session;
        GString *str;
        MsgInfo *msginfo;
-       gint ok, exists = 0, recent = 0, unseen = 0;
-       guint32 uid_validity = 0;
+       int same_folder;
        
        g_return_val_if_fail(folder != NULL, NULL);
        g_return_val_if_fail(item != NULL, NULL);
        g_return_val_if_fail(item->folder != NULL, NULL);
        g_return_val_if_fail(item->folder->type == F_IMAP, NULL);
 
-       session = imap_session_get(folder);
+       session = imap_session_get(_folder);
        g_return_val_if_fail(session != NULL, NULL);
 
-       ok = imap_select(session, IMAP_FOLDER(folder), item->path,
-                        &exists, &recent, &unseen, &uid_validity);
-       if (ok != IMAP_SUCCESS)
-               return NULL;
+       same_folder = FALSE;
+       if (folder->selected_folder != NULL)
+               if (strcmp(folder->selected_folder, item->path) == 0)
+                       same_folder = TRUE;
+       
+       if (!same_folder) {
+               gint ok, exists = 0, recent = 0, unseen = 0;
+               guint32 uid_validity = 0;
+
+               ok = imap_select(session, IMAP_FOLDER(folder), item->path,
+                                &exists, &recent, &unseen, &uid_validity);
+               if (ok != IMAP_SUCCESS)
+                       return NULL;
+       }
        
        if (imap_cmd_envelope(SESSION(session)->sock, num, num)
            != IMAP_SUCCESS) {
@@ -3191,21 +3318,33 @@ MsgInfo *imap_fetch_msginfo(Folder *folder, FolderItem *item, gint num)
        g_string_assign(str, tmp);
        g_free(tmp);
 
-       msginfo = imap_parse_envelope(SESSION(session)->sock, item, str);
-       if (!msginfo) {
-               log_warning(_("can't parse envelope: %s\n"), str->str);
+       /* if the server did not return a envelope */
+       if (str->str[0] != '*') {
+               g_string_free(str, TRUE);
+               return NULL;
        }
 
+       msginfo = imap_parse_envelope(SESSION(session)->sock,
+                                     item, str);
+
+       /* Read all data on the socket until the server is read for a new command */
        tmp = NULL;
        do {
                g_free(tmp);
                tmp = sock_getline(SESSION(session)->sock);
        } while (!(tmp == NULL || tmp[0] != '*' || tmp[1] != ' '));
-       
-       msginfo->folder = item;
+       g_free(tmp);
+
+       /* if message header could not be parsed */
+       if (!msginfo) {
+               log_warning(_("can't parse envelope: %s\n"), str->str);
+               return NULL;
+       }
 
        g_string_free(str, TRUE);
-       
+
+       msginfo->folder = item;
+
        return msginfo;
 }
 
@@ -3229,5 +3368,17 @@ gboolean imap_check_msgnum_validity(Folder *folder, FolderItem *_item)
        if (ok != IMAP_SUCCESS)
                return FALSE;
 
-       return item->item.mtime == uid_validity;
+       if(item->item.mtime == uid_validity)
+               return TRUE;
+
+       debug_print("Freeing imap uid cache");
+       item->lastuid = 0;
+       g_slist_free(item->uid_list);
+       item->uid_list = NULL;
+               
+       item->item.mtime = uid_validity;
+
+       imap_delete_all_cached_messages((FolderItem *)item);
+
+       return FALSE;
 }