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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "DBusMessage.h"
#include "DBusUtil.h"
#include "settings/AdvancedSettings.h"
#include "utils/log.h"
CDBusMessage::CDBusMessage(const char *destination, const char *object, const char *interface, const char *method)
{
m_message.reset(dbus_message_new_method_call(destination, object, interface, method));
if (!m_message)
{
// Fails only due to memory allocation failure
throw std::runtime_error("dbus_message_new_method_call");
}
m_haveArgs = false;
CLog::Log(LOGDEBUG, LOGDBUS, "DBus: Creating message to {} on {} with interface {} and method {}",
destination, object, interface, method);
}
CDBusMessage::CDBusMessage(const std::string& destination, const std::string& object, const std::string& interface, const std::string& method)
: CDBusMessage(destination.c_str(), object.c_str(), interface.c_str(), method.c_str())
{
}
void DBusMessageDeleter::operator()(DBusMessage* message) const
{
dbus_message_unref(message);
}
void CDBusMessage::AppendObjectPath(const char *object)
{
AppendWithType(DBUS_TYPE_OBJECT_PATH, &object);
}
template<>
void CDBusMessage::AppendArgument<bool>(const bool arg)
{
// dbus_bool_t width might not match C++ bool width
dbus_bool_t convArg = (arg == true);
AppendWithType(DBUS_TYPE_BOOLEAN, &convArg);
}
template<>
void CDBusMessage::AppendArgument<std::string>(const std::string arg)
{
AppendArgument(arg.c_str());
}
void CDBusMessage::AppendArgument(const char **arrayString, unsigned int length)
{
PrepareArgument();
DBusMessageIter sub;
if (!dbus_message_iter_open_container(&m_args, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING_AS_STRING, &sub))
{
throw std::runtime_error("dbus_message_iter_open_container");
}
for (unsigned int i = 0; i < length; i++)
{
if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &arrayString[i]))
{
throw std::runtime_error("dbus_message_iter_append_basic");
}
}
if (!dbus_message_iter_close_container(&m_args, &sub))
{
throw std::runtime_error("dbus_message_iter_close_container");
}
}
void CDBusMessage::AppendWithType(int type, const void* value)
{
PrepareArgument();
if (!dbus_message_iter_append_basic(&m_args, type, value))
{
throw std::runtime_error("dbus_message_iter_append_basic");
}
}
DBusMessageIter * CDBusMessage::GetArgumentIter() {
PrepareArgument();
return &m_args;
}
DBusMessage *CDBusMessage::SendSystem()
{
return Send(DBUS_BUS_SYSTEM);
}
DBusMessage *CDBusMessage::SendSession()
{
return Send(DBUS_BUS_SESSION);
}
DBusMessage *CDBusMessage::SendSystem(CDBusError& error)
{
return Send(DBUS_BUS_SYSTEM, error);
}
DBusMessage *CDBusMessage::SendSession(CDBusError& error)
{
return Send(DBUS_BUS_SESSION, error);
}
bool CDBusMessage::SendAsyncSystem()
{
return SendAsync(DBUS_BUS_SYSTEM);
}
bool CDBusMessage::SendAsyncSession()
{
return SendAsync(DBUS_BUS_SESSION);
}
DBusMessage *CDBusMessage::Send(DBusBusType type)
{
CDBusError error;
CDBusConnection con;
if (!con.Connect(type))
return nullptr;
DBusMessage *returnMessage = Send(con, error);
if (error)
error.Log();
return returnMessage;
}
DBusMessage *CDBusMessage::Send(DBusBusType type, CDBusError& error)
{
CDBusConnection con;
if (!con.Connect(type, error))
return nullptr;
DBusMessage *returnMessage = Send(con, error);
return returnMessage;
}
bool CDBusMessage::SendAsync(DBusBusType type)
{
CDBusConnection con;
if (!con.Connect(type))
return false;
return dbus_connection_send(con, m_message.get(), nullptr);
}
DBusMessage *CDBusMessage::Send(DBusConnection *con, CDBusError& error)
{
m_reply.reset(dbus_connection_send_with_reply_and_block(con, m_message.get(), -1, error));
return m_reply.get();
}
void CDBusMessage::PrepareArgument()
{
if (!m_haveArgs)
dbus_message_iter_init_append(m_message.get(), &m_args);
m_haveArgs = true;
}
bool CDBusMessage::InitializeReplyIter(DBusMessageIter* iter)
{
if (!m_reply)
{
throw std::logic_error("Cannot get reply arguments of message that does not have reply");
}
if (!dbus_message_iter_init(m_reply.get(), iter))
{
CLog::Log(LOGWARNING, "Tried to obtain reply arguments from message that has zero arguments");
return false;
}
return true;
}
bool CDBusMessage::CheckTypeAndGetValue(DBusMessageIter* iter, int expectType, void* dest)
{
const int haveType = dbus_message_iter_get_arg_type(iter);
if (haveType != expectType)
{
CLog::Log(LOGDEBUG, "DBus argument type mismatch: expected {}, got {}", expectType, haveType);
return false;
}
dbus_message_iter_get_basic(iter, dest);
return true;
}
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