implemented query search and virtual folder (merged from newsearch branch).

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@836 ee746299-78ed-0310-b773-934348b2243d

1 files changed, 297 insertions, 0 deletions

diff --git a/libsylph/virtual.c b/libsylph/virtual.c
new file mode 100644
index 00000000..897a7070
--- /dev/null
+++ b/libsylph/virtual.c
@@ -0,0 +1,297 @@
+/*
+ * LibSylph -- E-Mail client library
+ * Copyright (C) 1999-2005 Hiroyuki Yamamoto
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "defs.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#undef MEASURE_TIME
+
+#include "folder.h"
+#include "virtual.h"
+#include "procmsg.h"
+#include "procheader.h"
+#include "filter.h"
+#include "utils.h"
+
+typedef struct _VirtualSearchInfo	VirtualSearchInfo;
+
+struct _VirtualSearchInfo {
+	FilterRule *rule;
+	GSList *mlist;
+};
+
+static void	virtual_folder_init	(Folder		*folder,
+					 const gchar	*name,
+					 const gchar	*path);
+
+static GSList *virtual_search_folder	(FilterRule	*rule,
+					 FolderItem	*item);
+static gboolean virtual_search_recursive_func
+					(GNode		*node,
+					 gpointer	 data);
+
+static Folder	*virtual_folder_new	(const gchar	*name,
+					 const gchar	*path);
+static void     virtual_folder_destroy	(Folder		*folder);
+
+static GSList  *virtual_get_msg_list	(Folder		*folder,
+					 FolderItem	*item,
+					 gboolean	 use_cache);
+static gchar   *virtual_fetch_msg	(Folder		*folder,
+					 FolderItem	*item,
+					 gint		 num);
+static MsgInfo *virtual_get_msginfo	(Folder		*folder,
+					 FolderItem	*item,
+					 gint		 num);
+static gint    virtual_close		(Folder		*folder,
+					 FolderItem	*item);
+
+static gint    virtual_scan_folder	(Folder		*folder,
+					 FolderItem	*item);
+
+static FolderClass virtual_class =
+{
+	F_VIRTUAL,
+
+	virtual_folder_new,
+	virtual_folder_destroy,
+
+	NULL,
+	NULL,
+
+	virtual_get_msg_list,
+	virtual_fetch_msg,
+	virtual_get_msginfo,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	virtual_close,
+	virtual_scan_folder,
+
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+};
+
+
+FolderClass *virtual_get_class(void)
+{
+	return &virtual_class;
+}
+
+static Folder *virtual_folder_new(const gchar *name, const gchar *path)
+{
+	Folder *folder;
+
+	folder = (Folder *)g_new0(VirtualFolder, 1);
+	virtual_folder_init(folder, name, path);
+
+	return folder;
+}
+
+static void virtual_folder_destroy(Folder *folder)
+{
+	folder_local_folder_destroy(LOCAL_FOLDER(folder));
+}
+
+static void virtual_folder_init(Folder *folder, const gchar *name,
+				const gchar *path)
+{
+	folder->klass = virtual_get_class();
+	folder_local_folder_init(folder, name, path);
+}
+
+static GSList *virtual_search_folder(FilterRule *rule, FolderItem *item)
+{
+	GSList *match_list = NULL;
+	GSList *mlist;
+	GSList *cur;
+	FilterInfo fltinfo;
+	gboolean full_headers;
+
+	g_return_val_if_fail(rule != NULL, NULL);
+	g_return_val_if_fail(item != NULL, NULL);
+
+	/* prevent circular reference */
+	if (item->stype == F_VIRTUAL)
+		return NULL;
+
+	mlist = folder_item_get_msg_list(item, TRUE);
+
+	memset(&fltinfo, 0, sizeof(FilterInfo));
+
+	debug_print("start query search: %s\n", item->path ? item->path : "");
+
+	full_headers = filter_rule_requires_full_headers(rule);
+
+	for (cur = mlist; cur != NULL; cur = cur->next) {
+		MsgInfo *msginfo = (MsgInfo *)cur->data;
+		GSList *hlist;
+
+		fltinfo.flags = msginfo->flags;
+		if (full_headers) {
+			gchar *file;
+
+			file = procmsg_get_message_file(msginfo);
+			hlist = procheader_get_header_list_from_file(file);
+			g_free(file);
+		} else
+			hlist = procheader_get_header_list_from_msginfo
+				(msginfo);
+		if (!hlist)
+			continue;
+
+		if (filter_match_rule(rule, msginfo, hlist, &fltinfo)) {
+			match_list = g_slist_prepend(match_list, msginfo);
+			cur->data = NULL;
+		}
+
+		procheader_header_list_destroy(hlist);
+	}
+
+	procmsg_msg_list_free(mlist);
+
+	return g_slist_reverse(match_list);
+}
+
+static gboolean virtual_search_recursive_func(GNode *node, gpointer data)
+{
+	VirtualSearchInfo *info = (VirtualSearchInfo *)data;
+	FolderItem *item;
+	GSList *mlist;
+
+	g_return_val_if_fail(node->data != NULL, FALSE);
+
+	item = FOLDER_ITEM(node->data);
+
+	if (!item->path)
+		return FALSE;
+
+	mlist = virtual_search_folder(info->rule, item);
+	info->mlist = g_slist_concat(info->mlist, mlist);
+
+	return FALSE;
+}
+
+static GSList *virtual_get_msg_list(Folder *folder, FolderItem *item,
+				    gboolean use_cache)
+{
+	GSList *mlist = NULL;
+	GSList *flist;
+	GSList *cur;
+	FilterRule *rule;
+	gchar *rule_file;
+	gchar *path;
+	FolderItem *target;
+	gint new = 0, unread = 0, total = 0;
+
+	g_return_val_if_fail(item != NULL, NULL);
+	g_return_val_if_fail(item->stype == F_VIRTUAL, NULL);
+
+	path = folder_item_get_path(item);
+	rule_file = g_strconcat(path, G_DIR_SEPARATOR_S, "filter.xml", NULL);
+	flist = filter_read_file(rule_file);
+	g_free(rule_file);
+
+	g_free(path);
+
+	if (!flist) {
+		g_warning("filter rule not found\n");
+		return NULL;
+	}
+
+	rule = (FilterRule *)flist->data;
+	target = folder_find_item_from_identifier(rule->target_folder);
+
+	if (!target || target == item) {
+		g_warning("invalid target folder\n");
+		goto finish;
+	}
+
+	if (rule->recursive) {
+		VirtualSearchInfo info;
+
+		info.rule = rule;
+		info.mlist = NULL;
+		g_node_traverse(target->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
+				virtual_search_recursive_func, &info);
+		mlist = info.mlist;
+	} else
+		mlist = virtual_search_folder(rule, target);
+
+	for (cur = mlist; cur != NULL; cur = cur->next) {
+		MsgInfo *msginfo = (MsgInfo *)cur->data;
+
+		if (MSG_IS_NEW(msginfo->flags))
+			++new;
+		if (MSG_IS_UNREAD(msginfo->flags))
+			++unread;
+		++total;
+	}
+
+	item->new = new;
+	item->unread = unread;
+	item->total = total;
+	item->updated = TRUE;
+
+finish:
+	filter_rule_list_free(flist);
+	return mlist;
+}
+
+static gchar *virtual_fetch_msg(Folder *folder, FolderItem *item, gint num)
+{
+	return NULL;
+}
+
+static MsgInfo *virtual_get_msginfo(Folder *folder, FolderItem *item, gint num)
+{
+	return NULL;
+}
+
+static gint virtual_close(Folder *folder, FolderItem *item)
+{
+	return 0;
+}
+
+static gint virtual_scan_folder(Folder *folder, FolderItem *item)
+{
+	/* do search */
+	return 0;
+}