ladish/gui/lash_proxy.cpp

// -*- Mode: C++ ; indent-tabs-mode: t -*-
/* This file is part of Patchage.
 * Copyright (C) 2008 Nedko Arnaudov <nedko@arnaudov.name>
 * 
 * Patchage 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.
 * 
 * Patchage 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 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.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include <string.h>
#include <dbus/dbus.h>

#include "common.hpp"
#include "lash_proxy.hpp"
#include "session.hpp"
#include "project.hpp"
#include "lash_client.hpp"
#include "globals.hpp"
#include "dbus_helpers.h"

#define LASH_SERVICE       "org.nongnu.LASH"
#define LASH_OBJECT        "/"
#define LASH_IFACE_CONTROL "org.nongnu.LASH.Control"

using namespace std;

struct lash_proxy_impl
{
	void init();

	void fetch_loaded_projects();
	void fetch_project_clients(shared_ptr<project> project_ptr);

	static void error_msg(const std::string& msg);
	static void info_msg(const std::string& msg);

	static
	DBusHandlerResult
	dbus_message_hook(
		DBusConnection * connection,
		DBusMessage * message,
		void * proxy);

	bool
	call(
		bool response_expected,
		const char* iface,
		const char* method,
		DBusMessage ** reply_ptr_ptr,
		int in_type,
		...);

	shared_ptr<project>
	on_project_added(
		string name);

	shared_ptr<lash_client>
	on_client_added(
		shared_ptr<project> project_ptr,
		string id,
		string name);

	void exit();

	bool _server_responding;
	session * _session_ptr;
	lash_proxy * _interface_ptr;
};

lash_proxy::lash_proxy(session * session_ptr)
{
	_impl_ptr = new lash_proxy_impl;
	_impl_ptr->_interface_ptr = this;
	_impl_ptr->_session_ptr = session_ptr;
	_impl_ptr->init();
}

lash_proxy::~lash_proxy()
{
	delete _impl_ptr;
}

void
lash_proxy_impl::init()
{
	_server_responding = false;

	patchage_dbus_add_match("type='signal',interface='" DBUS_INTERFACE_DBUS "',member=NameOwnerChanged,arg0='" LASH_SERVICE "'");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ProjectAppeared");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ProjectDisappeared");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ProjectNameChanged");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ProjectModifiedStatusChanged");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ProjectDescriptionChanged");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ProjectNotesChanged");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ClientAppeared");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ClientDisappeared");
	patchage_dbus_add_match("type='signal',interface='" LASH_IFACE_CONTROL "',member=ClientNameChanged");

	patchage_dbus_add_filter(dbus_message_hook, this);

	// get initial list of projects
	// calling any method to updates server responding status
	// this also actiavtes lash object if it not activated already
 	fetch_loaded_projects();

	g_app->set_lash_availability(_server_responding);
}

bool
lash_proxy::is_active()
{
	return _impl_ptr->_server_responding;
}

void
lash_proxy::try_activate()
{
	list<lash_project_info> projects;
	get_available_projects(projects);
}

void
lash_proxy::deactivate()
{
	_impl_ptr->exit();
}

void
lash_proxy_impl::error_msg(const std::string& msg)
{
	g_app->error_msg((std::string)"[LASH] " + msg);
}

void
lash_proxy_impl::info_msg(const std::string& msg)
{
	g_app->info_msg((std::string)"[LASH] " + msg);
}

DBusHandlerResult
lash_proxy_impl::dbus_message_hook(
	DBusConnection * connection,
	DBusMessage * message,
	void * proxy)
{
	const char * project_name;
	const char * new_project_name;
	const char * object_name;
	const char * old_owner;
	const char * new_owner;
	const char * value_string;
	const char * client_id;
	const char * client_name;
	dbus_bool_t modified_status;
	shared_ptr<project> project_ptr;
	shared_ptr<lash_client> client_ptr;

	assert(proxy);
	lash_proxy_impl * me = reinterpret_cast<lash_proxy_impl *>(proxy);

	//info_msg("dbus_message_hook() called.");

	// Handle signals we have subscribed for in attach()

	if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &object_name,
			    DBUS_TYPE_STRING, &old_owner,
			    DBUS_TYPE_STRING, &new_owner,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract NameOwnerChanged signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		if ((string)object_name != LASH_SERVICE)
		{
			return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
		}

		if (old_owner[0] == '\0')
		{
			info_msg((string)"LASH activated.");
			g_app->set_lash_availability(true);
		}
		else if (new_owner[0] == '\0')
		{
			info_msg((string)"LASH deactivated.");
			g_app->set_lash_availability(false);
			me->_server_responding = false;
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ProjectAppeared"))
	{
		if (!dbus_message_get_args( message, &g_dbus_error,
					DBUS_TYPE_STRING, &project_name,
					DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ProjectAppeared signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Project '" + project_name + "' appeared.");
		me->on_project_added(project_name);

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ProjectDisappeared"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ProjectDisappeared signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Project '" + project_name + "' disappeared.");
		me->_session_ptr->project_close(project_name);

		return DBUS_HANDLER_RESULT_HANDLED;
	}


	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ProjectNameChanged"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_STRING, &new_project_name,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ProjectNameChanged signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Project '" + project_name + "' renamed to '" + new_project_name + "'.");

		project_ptr = me->_session_ptr->find_project_by_name(project_name);
		if (project_ptr)
		{
			project_ptr->on_name_changed(new_project_name);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ProjectModifiedStatusChanged"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_BOOLEAN, &modified_status,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ProjectModifiedStatusChanged signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Project '" + project_name + "' modified status changed to '" + (modified_status ? "true" : "false") + "'.");

		project_ptr = me->_session_ptr->find_project_by_name(project_name);
		if (project_ptr)
		{
			project_ptr->on_modified_status_changed(modified_status);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ProjectDescriptionChanged"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_STRING, &value_string,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ProjectDescriptionChanged signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Project '" + project_name + "' description changed.");

		project_ptr = me->_session_ptr->find_project_by_name(project_name);
		if (project_ptr)
		{
			project_ptr->on_description_changed(value_string);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ProjectNotesChanged"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_STRING, &value_string,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ProjectNotesChanged signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Project '" + project_name + "' notes changed.");

		project_ptr = me->_session_ptr->find_project_by_name(project_name);
		if (project_ptr)
		{
			project_ptr->on_notes_changed(value_string);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ClientAppeared"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &client_id,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_STRING, &client_name,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ClientAppeared signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Client '" + client_id + "':'" + client_name + "' appeared in project '" + project_name + "'.");

		project_ptr = me->_session_ptr->find_project_by_name(project_name);
		if (project_ptr)
		{
			me->on_client_added(project_ptr, client_id, client_name);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ClientDisappeared"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &client_id,
			    DBUS_TYPE_STRING, &project_name,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ClientDisappeared signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Client '" + client_id + "' of project '" + project_name + "' disappeared.");

		client_ptr = me->_session_ptr->find_client_by_id(client_id);
		if (client_ptr)
		{
			client_ptr->get_project()->on_client_removed(client_id);
			me->_session_ptr->client_remove(client_id);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	if (dbus_message_is_signal(message, LASH_IFACE_CONTROL, "ClientNameChanged"))
	{
		if (!dbus_message_get_args(
			    message, &g_dbus_error,
			    DBUS_TYPE_STRING, &client_id,
			    DBUS_TYPE_STRING, &client_name,
			    DBUS_TYPE_INVALID))
		{
			error_msg(str(boost::format("dbus_message_get_args() failed to extract ClientNameChanged signal arguments (%s)") % g_dbus_error.message));
			dbus_error_free(&g_dbus_error);
			return DBUS_HANDLER_RESULT_HANDLED;
		}

		info_msg((string)"Client '" + client_id + "' name changed to '" + client_name + "'.");

		client_ptr = me->_session_ptr->find_client_by_id(client_id);
		if (client_ptr)
		{
			client_ptr->on_name_changed(client_name);
		}

		return DBUS_HANDLER_RESULT_HANDLED;
	}

	return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}

bool
lash_proxy_impl::call(
	bool response_expected,
	const char* iface,
	const char* method,
	DBusMessage ** reply_ptr_ptr,
	int in_type,
	...)
{
	va_list ap;

	va_start(ap, in_type);

	_server_responding = patchage_dbus_call_valist(
		response_expected,
		LASH_SERVICE,
		LASH_OBJECT,
		iface,
		method,
		reply_ptr_ptr,
		in_type,
		ap);

	va_end(ap);

	return _server_responding;
}

void
lash_proxy_impl::fetch_loaded_projects()
{
	DBusMessage* reply_ptr;
	const char * reply_signature;
	DBusMessageIter iter;
	DBusMessageIter array_iter;
	const char * project_name;
	shared_ptr<project> project_ptr;

	if (!call(true, LASH_IFACE_CONTROL, "ProjectsGet", &reply_ptr, DBUS_TYPE_INVALID)) {
		return;
	}

	reply_signature = dbus_message_get_signature(reply_ptr);

	if (strcmp(reply_signature, "as") != 0)
	{
		error_msg((string)"ProjectsGet() reply signature mismatch. " + reply_signature);
		goto unref;
	}

	dbus_message_iter_init(reply_ptr, &iter);

	for (dbus_message_iter_recurse(&iter, &array_iter);
	     dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_INVALID;
	     dbus_message_iter_next(&array_iter))
	{
		dbus_message_iter_get_basic(&array_iter, &project_name);
		project_ptr = on_project_added(project_name);
		fetch_project_clients(project_ptr);
	}

unref:
	dbus_message_unref(reply_ptr);
}

void
lash_proxy_impl::fetch_project_clients(
	shared_ptr<project> project_ptr)
{
	DBusMessage* reply_ptr;
	const char * reply_signature;
	DBusMessageIter iter;
	DBusMessageIter array_iter;
	DBusMessageIter struct_iter;
	const char * client_id;
	const char * client_name;
	string project_name;
	const char * project_name_cstr;

	project_ptr->get_name(project_name);
	project_name_cstr = project_name.c_str();

	if (!call(
		    true,
		    LASH_IFACE_CONTROL,
		    "ProjectGetClients",
		    &reply_ptr,
		    DBUS_TYPE_STRING, &project_name_cstr,
		    DBUS_TYPE_INVALID))
	{
		return;
	}

	reply_signature = dbus_message_get_signature(reply_ptr);

	if (strcmp(reply_signature, "a(ss)") != 0)
	{
		error_msg((string)"ProjectGetClients() reply signature mismatch. " + reply_signature);
		goto unref;
	}

	dbus_message_iter_init(reply_ptr, &iter);

	for (dbus_message_iter_recurse(&iter, &array_iter);
	     dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_INVALID;
	     dbus_message_iter_next(&array_iter))
	{
		dbus_message_iter_recurse(&array_iter, &struct_iter);

		dbus_message_iter_get_basic(&struct_iter, &client_id);
		dbus_message_iter_next(&struct_iter);
		dbus_message_iter_get_basic(&struct_iter, &client_name);
		dbus_message_iter_next(&struct_iter);

		on_client_added(project_ptr, client_id, client_name);
	}

unref:
	dbus_message_unref(reply_ptr);
}

shared_ptr<project>
lash_proxy_impl::on_project_added(
	string name)
{
	shared_ptr<project> project_ptr(new project(_interface_ptr, name));

	_session_ptr->project_add(project_ptr);

	return project_ptr;
}

shared_ptr<lash_client>
lash_proxy_impl::on_client_added(
	shared_ptr<project> project_ptr,
	string id,
	string name)
{
	shared_ptr<lash_client> client_ptr(
		new lash_client(
			_interface_ptr,
			project_ptr.get(),
			id,
			name));

	project_ptr->on_client_added(client_ptr);
	_session_ptr->client_add(client_ptr);

	return client_ptr;
}

void
lash_proxy::get_available_projects(
	list<lash_project_info>& projects)
{
	DBusMessage * reply_ptr;
	const char * reply_signature;
	DBusMessageIter iter;
	DBusMessageIter array_iter;
	DBusMessageIter struct_iter;
	DBusMessageIter dict_iter;
	DBusMessageIter dict_entry_iter;
	DBusMessageIter variant_iter;
	const char * project_name;
	const char * key;
	const char * value_type;
	dbus_uint32_t value_uint32;
 	const char * value_string;
	lash_project_info project_info;

	if (!_impl_ptr->call(true, LASH_IFACE_CONTROL, "ProjectsGetAvailable", &reply_ptr, DBUS_TYPE_INVALID))
	{
		return;
	}

	reply_signature = dbus_message_get_signature(reply_ptr);

	if (strcmp(reply_signature, "a(sa{sv})") != 0)
	{
		lash_proxy_impl::error_msg((string)"ProjectsGetAvailable() reply signature mismatch. " + reply_signature);
		goto unref;
	}

	dbus_message_iter_init(reply_ptr, &iter);

	for (dbus_message_iter_recurse(&iter, &array_iter);
	     dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_INVALID;
	     dbus_message_iter_next(&array_iter))
	{
		dbus_message_iter_recurse(&array_iter, &struct_iter);

		dbus_message_iter_get_basic(&struct_iter, &project_name);

		project_info.name = project_name;
		project_info.modification_time = 0;
		project_info.description.erase();

		dbus_message_iter_next(&struct_iter);

		for (dbus_message_iter_recurse(&struct_iter, &dict_iter);
		     dbus_message_iter_get_arg_type(&dict_iter) != DBUS_TYPE_INVALID;
		     dbus_message_iter_next(&dict_iter))
		{
			dbus_message_iter_recurse(&dict_iter, &dict_entry_iter);
			dbus_message_iter_get_basic(&dict_entry_iter, &key);
			dbus_message_iter_next(&dict_entry_iter);
			dbus_message_iter_recurse(&dict_entry_iter, &variant_iter);
			value_type = dbus_message_iter_get_signature(&variant_iter);
			if (value_type[0] != 0 && value_type[1] == 0)
			{
				switch (*value_type)
				{
				case DBUS_TYPE_UINT32:
					if (strcmp(key, "Modification Time") == 0)
					{
						dbus_message_iter_get_basic(&variant_iter, &value_uint32);
						project_info.modification_time = value_uint32;
					}
					break;
				case DBUS_TYPE_STRING:
					if (strcmp(key, "Description") == 0)
					{
						dbus_message_iter_get_basic(&variant_iter, &value_string);
						project_info.description = value_string;
					}
					break;
				}
			}
		}

		projects.push_back(project_info);
	}

unref:
	dbus_message_unref(reply_ptr);
}

void
lash_proxy::load_project(
	const string& project_name)
{
	DBusMessage * reply_ptr;
	const char * project_name_cstr;

	project_name_cstr = project_name.c_str();

	if (!_impl_ptr->call(true, LASH_IFACE_CONTROL, "ProjectOpen", &reply_ptr, DBUS_TYPE_STRING, &project_name_cstr, DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::save_all_projects()
{
	DBusMessage * reply_ptr;

	if (!_impl_ptr->call(true, LASH_IFACE_CONTROL, "ProjectsSaveAll", &reply_ptr, DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::save_project(
	const string& project_name)
{
	DBusMessage * reply_ptr;
	const char * project_name_cstr;

	project_name_cstr = project_name.c_str();

	if (!_impl_ptr->call(true, LASH_IFACE_CONTROL, "ProjectSave", &reply_ptr, DBUS_TYPE_STRING, &project_name_cstr, DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::close_project(
	const string& project_name)
{
	DBusMessage * reply_ptr;
	const char * project_name_cstr;

	project_name_cstr = project_name.c_str();

	if (!_impl_ptr->call(true, LASH_IFACE_CONTROL, "ProjectClose", &reply_ptr, DBUS_TYPE_STRING, &project_name_cstr, DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::close_all_projects()
{
	DBusMessage * reply_ptr;

	if (!_impl_ptr->call(true, LASH_IFACE_CONTROL, "ProjectsCloseAll", &reply_ptr, DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::project_rename(
	const string& old_name,
	const string& new_name)
{
	DBusMessage * reply_ptr;
	const char * old_name_cstr;
	const char * new_name_cstr;

	old_name_cstr = old_name.c_str();
	new_name_cstr = new_name.c_str();

	if (!_impl_ptr->call(
		    true,
		    LASH_IFACE_CONTROL,
		    "ProjectRename",
		    &reply_ptr,
		    DBUS_TYPE_STRING, &old_name_cstr,
		    DBUS_TYPE_STRING, &new_name_cstr,
		    DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::get_loaded_project_properties(
	const string& name,
	lash_loaded_project_properties& properties)
{
 	DBusMessage * reply_ptr;
 	const char * reply_signature;
 	DBusMessageIter iter;
 	DBusMessageIter dict_iter;
 	DBusMessageIter dict_entry_iter;
 	DBusMessageIter variant_iter;
 	const char * key;
 	const char * value_type;
 	dbus_bool_t value_bool;
 	const char * value_string;
 	const char * project_name_cstr;

	project_name_cstr = name.c_str();

	if (!_impl_ptr->call(
		    true,
		    LASH_IFACE_CONTROL,
		    "ProjectGetProperties",
		    &reply_ptr,
		    DBUS_TYPE_STRING, &project_name_cstr,
		    DBUS_TYPE_INVALID))
	{
		return;
	}

	reply_signature = dbus_message_get_signature(reply_ptr);

	if (strcmp(reply_signature, "a{sv}") != 0)
	{
		lash_proxy_impl::error_msg((string)"ProjectGetProperties() reply signature mismatch. " + reply_signature);
		goto unref;
	}

	dbus_message_iter_init(reply_ptr, &iter);

	for (dbus_message_iter_recurse(&iter, &dict_iter);
	     dbus_message_iter_get_arg_type(&dict_iter) != DBUS_TYPE_INVALID;
	     dbus_message_iter_next(&dict_iter))
	{
		dbus_message_iter_recurse(&dict_iter, &dict_entry_iter);
		dbus_message_iter_get_basic(&dict_entry_iter, &key);
		dbus_message_iter_next(&dict_entry_iter);
		dbus_message_iter_recurse(&dict_entry_iter, &variant_iter);
		value_type = dbus_message_iter_get_signature(&variant_iter);
		if (value_type[0] != 0 && value_type[1] == 0)
		{
			switch (*value_type)
			{
			case DBUS_TYPE_BOOLEAN:
				if (strcmp(key, "Modified Status") == 0)
				{
					dbus_message_iter_get_basic(&variant_iter, &value_bool);
					properties.modified_status = value_bool;
				}
				break;
			case DBUS_TYPE_STRING:
				if (strcmp(key, "Description") == 0)
				{
					dbus_message_iter_get_basic(&variant_iter, &value_string);
					properties.description = value_string;
				}
				else if (strcmp(key, "Notes") == 0)
				{
					dbus_message_iter_get_basic(&variant_iter, &value_string);
					properties.notes = value_string;
				}
				break;
			}
		}
	}

unref:
	dbus_message_unref(reply_ptr);
}

void
lash_proxy::project_set_description(
	const string& project_name,
	const string& description)
{
	DBusMessage * reply_ptr;
	const char * project_name_cstr;
	const char * description_cstr;

	project_name_cstr = project_name.c_str();
	description_cstr = description.c_str();

	if (!_impl_ptr->call(
		    true,
		    LASH_IFACE_CONTROL,
		    "ProjectSetDescription",
		    &reply_ptr,
		    DBUS_TYPE_STRING, &project_name_cstr,
		    DBUS_TYPE_STRING, &description_cstr,
		    DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy::project_set_notes(
	const string& project_name,
	const string& notes)
{
	DBusMessage * reply_ptr;
	const char * project_name_cstr;
	const char * notes_cstr;

	project_name_cstr = project_name.c_str();
	notes_cstr = notes.c_str();

	if (!_impl_ptr->call(
		    true,
		    LASH_IFACE_CONTROL,
		    "ProjectSetNotes",
		    &reply_ptr,
		    DBUS_TYPE_STRING, &project_name_cstr,
		    DBUS_TYPE_STRING, &notes_cstr,
		    DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}

void
lash_proxy_impl::exit()
{
	DBusMessage * reply_ptr;

	if (!call(
		    true,
		    LASH_IFACE_CONTROL,
		    "Exit",
		    &reply_ptr,
		    DBUS_TYPE_INVALID))
	{
		return;
	}

	dbus_message_unref(reply_ptr);
}