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-rw-r--r--qt/src/qdbusmarshall.cpp102
1 files changed, 65 insertions, 37 deletions
diff --git a/qt/src/qdbusmarshall.cpp b/qt/src/qdbusmarshall.cpp
index 6209ffb3..0d90fcd5 100644
--- a/qt/src/qdbusmarshall.cpp
+++ b/qt/src/qdbusmarshall.cpp
@@ -213,7 +213,7 @@ static bool checkType(QVariant &var, QDBusType &type)
if (!type.isValid()) {
// guess it from the variant
type = QDBusType::guessFromVariant(var);
- return true;
+ return type.isValid();
}
int id = var.userType();
@@ -327,10 +327,10 @@ static bool checkType(QVariant &var, QDBusType &type)
return false;
}
-static void qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var,
+static bool qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var,
const QDBusType &type);
-static void qListToIterator(DBusMessageIter *it, const QList<QVariant> &list,
+static bool qListToIterator(DBusMessageIter *it, const QList<QVariant> &list,
const QDBusTypeList &typelist);
template<typename T>
@@ -348,9 +348,10 @@ static void qAppendListToMessage(DBusMessageIter *it, const QDBusType &subType,
qIterAppend(it, subType, static_cast<DBusType>(item));
}
-static void qAppendArrayToMessage(DBusMessageIter *it, const QDBusType &subType,
+static bool qAppendArrayToMessage(DBusMessageIter *it, const QDBusType &subType,
const QVariant &var)
{
+ bool ok = false;
DBusMessageIter sub;
dbus_message_iter_open_container(it, DBUS_TYPE_ARRAY, subType.dbusSignature(), &sub);
@@ -360,6 +361,7 @@ static void qAppendArrayToMessage(DBusMessageIter *it, const QDBusType &subType,
const QStringList list = var.toStringList();
foreach (QString str, list)
qIterAppend(&sub, subType, str.toUtf8().constData());
+ ok = true;
break;
}
@@ -367,20 +369,25 @@ static void qAppendArrayToMessage(DBusMessageIter *it, const QDBusType &subType,
const QByteArray array = var.toByteArray();
const char* cdata = array.constData();
dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &cdata, array.length());
+ ok = true;
break;
}
case QVariant::Map: {
const QVariantMap map = var.toMap();
const QDBusTypeList& subTypes = subType.subTypes();
+
+ ok = true;
for (QMap<QString, QVariant>::const_iterator mit = map.constBegin();
- mit != map.constEnd(); ++mit) {
+ ok && mit != map.constEnd(); ++mit) {
DBusMessageIter itemIterator;
dbus_message_iter_open_container(&sub, DBUS_TYPE_DICT_ENTRY, 0, &itemIterator);
// let the string be converted to QVariant
- qVariantToIteratorInternal(&itemIterator, mit.key(), subTypes[0]);
- qVariantToIteratorInternal(&itemIterator, mit.value(), subTypes[1]);
+ if (!qVariantToIteratorInternal(&itemIterator, mit.key(), subTypes[0]))
+ ok = false;
+ else if (!qVariantToIteratorInternal(&itemIterator, mit.value(), subTypes[1]))
+ ok = false;
dbus_message_iter_close_container(&sub, &itemIterator);
}
@@ -389,13 +396,18 @@ static void qAppendArrayToMessage(DBusMessageIter *it, const QDBusType &subType,
case QVariant::List: {
const QVariantList list = var.toList();
+ ok = true;
foreach (QVariant v, list)
- qVariantToIteratorInternal(&sub, v, subType);
+ if (!qVariantToIteratorInternal(&sub, v, subType)) {
+ ok = false;
+ break;
+ }
break;
}
default: {
int id = var.userType();
+ ok = true;
if (id == QDBusTypeHelper<bool>::listId())
qAppendListToMessage<dbus_bool_t,bool>(&sub, subType, var);
else if (id == QDBusTypeHelper<short>::listId())
@@ -416,25 +428,29 @@ static void qAppendArrayToMessage(DBusMessageIter *it, const QDBusType &subType,
else if (id == QDBusTypeHelper<QVariant>::listId())
qAppendListToMessage<QVariant,QVariant>(&sub, subType, var);
#endif
- else
+ else {
qFatal("qAppendArrayToMessage got unknown type!");
+ ok = false;
+ }
break;
}
}
dbus_message_iter_close_container(it, &sub);
+ return ok;
}
-static void qAppendStructToMessage(DBusMessageIter *it, const QDBusTypeList &typeList,
+static bool qAppendStructToMessage(DBusMessageIter *it, const QDBusTypeList &typeList,
const QVariantList &list)
{
DBusMessageIter sub;
dbus_message_iter_open_container(it, DBUS_TYPE_STRUCT, NULL, &sub);
- qListToIterator(&sub, list, typeList);
+ bool ok = qListToIterator(&sub, list, typeList);
dbus_message_iter_close_container(it, &sub);
+ return ok;
}
-static void qAppendVariantToMessage(DBusMessageIter *it, const QDBusType &type,
+static bool qAppendVariantToMessage(DBusMessageIter *it, const QDBusType &type,
const QVariant &var)
{
Q_UNUSED(type); // type is 'v'
@@ -444,25 +460,32 @@ static void qAppendVariantToMessage(DBusMessageIter *it, const QDBusType &type,
arg = QDBusTypeHelper<QVariant>::fromVariant(var); // extract the inner variant
QDBusType t = QDBusType::guessFromVariant(arg);
+ if (!t.isValid())
+ return false;
// now add this variant
DBusMessageIter sub;
dbus_message_iter_open_container(it, DBUS_TYPE_VARIANT, t.dbusSignature(), &sub);
qVariantToIteratorInternal(&sub, arg, t);
dbus_message_iter_close_container(it, &sub);
+
+ return true; // success
}
-static void qVariantToIterator(DBusMessageIter *it, QVariant var, QDBusType type)
+static bool qVariantToIterator(DBusMessageIter *it, QVariant var, QDBusType type)
{
- if (var.isNull() && !type.isValid())
- return; // cannot add a null like this
+ if (!var.isValid()) {
+ qWarning("QDBusMarshall: invalid QVariant entry found");
+ return false;
+ }
if (!checkType(var, type))
- return; // type checking failed
+ // warning has been printed
+ return false; // type checking failed
- qVariantToIteratorInternal(it, var, type);
+ return qVariantToIteratorInternal(it, var, type);
}
-static void qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var,
+static bool qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var,
const QDBusType &type)
{
switch (type.dbusType()) {
@@ -502,42 +525,47 @@ static void qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var,
// compound types:
case DBUS_TYPE_ARRAY:
// could be many things
- qAppendArrayToMessage( it, type.arrayElement(), var );
- break;
+ return qAppendArrayToMessage( it, type.arrayElement(), var );
case DBUS_TYPE_VARIANT:
- qAppendVariantToMessage( it, type, var );
- break;
+ return qAppendVariantToMessage( it, type, var );
case DBUS_TYPE_STRUCT:
- qAppendStructToMessage( it, type.subTypes(), var.toList() );
- break;
+ return qAppendStructToMessage( it, type.subTypes(), var.toList() );
case DBUS_TYPE_DICT_ENTRY:
qFatal("qVariantToIterator got a DICT_ENTRY!");
- break;
+ return false;
default:
qWarning("Found unknown DBus type '%s'", type.dbusSignature().constData());
- break;
+ return false;
}
+
+ return true;
}
-void qListToIterator(DBusMessageIter *it, const QList<QVariant> &list)
+bool qListToIterator(DBusMessageIter *it, const QList<QVariant> &list)
{
for (int i = 0; i < list.count(); ++i)
- qVariantToIterator(it, list.at(i), QDBusType());
+ if (!qVariantToIterator(it, list.at(i), QDBusType()))
+ return false;
+
+ return true;
}
-void qListToIterator(DBusMessageIter *it, const QList<QVariant> &list, const QDBusTypeList &types)
+bool qListToIterator(DBusMessageIter *it, const QList<QVariant> &list, const QDBusTypeList &types)
{
- int min = qMin(list.count(), types.count());
- for (int i = 0; i < min; ++i)
- qVariantToIterator(it, list.at(i), types.at(i));
+ if (list.count() < types.count()) {
+ qWarning("QDBusMarshall: too few parameters");
+ return false;
+ }
+
+ for (int i = 0; i < types.count(); ++i)
+ if (!qVariantToIterator(it, list.at(i), types.at(i)))
+ return false;
- for (int i = min; i < types.count(); ++i)
- // we're missing a few arguments, so add default parameters
- qVariantToIterator(it, QVariant(), types.at(i));
+ return true;
}
void QDBusMarshall::listToMessage(const QList<QVariant> &list, DBusMessage *msg,
@@ -548,7 +576,7 @@ void QDBusMarshall::listToMessage(const QList<QVariant> &list, DBusMessage *msg,
dbus_message_iter_init_append(msg, &it);
if (signature.isEmpty())
- qListToIterator(&it, list);
+ (void) qListToIterator(&it, list);
else
- qListToIterator(&it, list, QDBusTypeList(signature.toUtf8()));
+ (void) qListToIterator(&it, list, QDBusTypeList(signature.toUtf8()));
}
generated by cgit (git 2.34.1) at 2024-05-24 18:19:37 +0000