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Diffstat (limited to 'qt/src/qdbusmarshall.cpp')
| -rw-r--r-- | qt/src/qdbusmarshall.cpp | 582 |
1 files changed, 0 insertions, 582 deletions
diff --git a/qt/src/qdbusmarshall.cpp b/qt/src/qdbusmarshall.cpp deleted file mode 100644 index 0d90fcd5..00000000 --- a/qt/src/qdbusmarshall.cpp +++ /dev/null @@ -1,582 +0,0 @@ -/* qdbusmarshall.cpp - * - * Copyright (C) 2005 Harald Fernengel <harry@kdevelop.org> - * Copyright (C) 2006 Trolltech AS. All rights reserved. - * Author: Thiago Macieira <thiago.macieira@trolltech.com> - * - * Licensed under the Academic Free License version 2.1 - * - * This program 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. - * - * This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ - -#include "qdbusmarshall_p.h" -#include "qdbustype_p.h" -#include "qdbustypehelper_p.h" - -#include <qdebug.h> -#include <qvariant.h> -#include <qlist.h> -#include <qmap.h> -#include <qstringlist.h> -#include <qvarlengtharray.h> -#include <qvector.h> - -#include <dbus/dbus.h> - -static QVariant qFetchParameter(DBusMessageIter *it); - -template <typename T> -inline T qIterGet(DBusMessageIter *it) -{ - T t; - dbus_message_iter_get_basic(it, &t); - return t; -} - -template<> -inline QVariant qIterGet(DBusMessageIter *it) -{ - DBusMessageIter sub; - dbus_message_iter_recurse(it, &sub); - return QDBusTypeHelper<QVariant>::toVariant(qFetchParameter(&sub)); -} - -template <typename DBusType, typename QtType> -inline QVariant qFetchList(DBusMessageIter *arrayIt) -{ - QList<QtType> list; - - DBusMessageIter it; - dbus_message_iter_recurse(arrayIt, &it); - if (dbus_message_iter_get_array_len(&it) == 0) - return QDBusTypeHelper<QList<QtType> >::toVariant(list); - - do { - list.append( static_cast<QtType>( qIterGet<DBusType>(&it) ) ); - } while (dbus_message_iter_next(&it)); - - return QDBusTypeHelper<QList<QtType> >::toVariant(list); -} - -static QStringList qFetchStringList(DBusMessageIter *arrayIt) -{ - QStringList list; - - DBusMessageIter it; - dbus_message_iter_recurse(arrayIt, &it); - if (dbus_message_iter_get_array_len(&it) == 0) - return list; - - do { - list.append(QString::fromUtf8(qIterGet<char *>(&it))); - } while (dbus_message_iter_next(&it)); - - return list; -} - -static QVariant qFetchParameter(DBusMessageIter *it) -{ - switch (dbus_message_iter_get_arg_type(it)) { - case DBUS_TYPE_BYTE: - return qVariantFromValue(qIterGet<unsigned char>(it)); - case DBUS_TYPE_INT16: - return qVariantFromValue(qIterGet<dbus_int16_t>(it)); - case DBUS_TYPE_UINT16: - return qVariantFromValue(qIterGet<dbus_uint16_t>(it)); - case DBUS_TYPE_INT32: - return qIterGet<dbus_int32_t>(it); - case DBUS_TYPE_UINT32: - return qIterGet<dbus_uint32_t>(it); - case DBUS_TYPE_DOUBLE: - return qIterGet<double>(it); - case DBUS_TYPE_BOOLEAN: - return bool(qIterGet<dbus_bool_t>(it)); - case DBUS_TYPE_INT64: - return static_cast<qlonglong>(qIterGet<dbus_int64_t>(it)); - case DBUS_TYPE_UINT64: - return static_cast<qulonglong>(qIterGet<dbus_uint64_t>(it)); - case DBUS_TYPE_STRING: - case DBUS_TYPE_OBJECT_PATH: - case DBUS_TYPE_SIGNATURE: - return QString::fromUtf8(qIterGet<char *>(it)); - case DBUS_TYPE_VARIANT: - return qIterGet<QVariant>(it); - case DBUS_TYPE_ARRAY: { - int arrayType = dbus_message_iter_get_element_type(it); - switch (arrayType) - { - case DBUS_TYPE_BYTE: { - // QByteArray - DBusMessageIter sub; - dbus_message_iter_recurse(it, &sub); - int len = dbus_message_iter_get_array_len(&sub); - char* data; - dbus_message_iter_get_fixed_array(&sub,&data,&len); - return QByteArray(data,len); - } - case DBUS_TYPE_INT16: - return qFetchList<dbus_int16_t, short>(it); - case DBUS_TYPE_UINT16: - return qFetchList<dbus_uint16_t, ushort>(it); - case DBUS_TYPE_INT32: - return qFetchList<dbus_int32_t, int>(it); - case DBUS_TYPE_UINT32: - return qFetchList<dbus_uint32_t, uint>(it); - case DBUS_TYPE_BOOLEAN: - return qFetchList<dbus_bool_t, bool>(it); - case DBUS_TYPE_DOUBLE: - return qFetchList<double, double>(it); - case DBUS_TYPE_INT64: - return qFetchList<dbus_int64_t, qlonglong>(it); - case DBUS_TYPE_UINT64: - return qFetchList<dbus_uint64_t, qulonglong>(it); - case DBUS_TYPE_STRING: - case DBUS_TYPE_OBJECT_PATH: - case DBUS_TYPE_SIGNATURE: - return qFetchStringList(it); - case DBUS_TYPE_VARIANT: - return qFetchList<QVariant, QVariant>(it); - case DBUS_TYPE_DICT_ENTRY: { - // ### support other types of maps? - QMap<QString, QVariant> map; - DBusMessageIter sub; - - dbus_message_iter_recurse(it, &sub); - if (dbus_message_iter_get_array_len(&sub) == 0) - // empty map - return map; - - do { - DBusMessageIter itemIter; - dbus_message_iter_recurse(&sub, &itemIter); - Q_ASSERT(dbus_message_iter_has_next(&itemIter)); - QString key = qFetchParameter(&itemIter).toString(); - dbus_message_iter_next(&itemIter); - map.insertMulti(key, qFetchParameter(&itemIter)); - } while (dbus_message_iter_next(&sub)); - return map; - } - } - } - // fall through - // common handling for structs and lists of lists (for now) - case DBUS_TYPE_STRUCT: { - QList<QVariant> list; - DBusMessageIter sub; - dbus_message_iter_recurse(it, &sub); - if (dbus_message_iter_get_array_len(&sub) == 0) - return list; - do { - list.append(qFetchParameter(&sub)); - } while (dbus_message_iter_next(&sub)); - return list; - } - - default: - qWarning("Don't know how to handle type %d '%c'", dbus_message_iter_get_arg_type(it), dbus_message_iter_get_arg_type(it)); - return QVariant(); - break; - } -} - -void QDBusMarshall::messageToList(QList<QVariant> &list, DBusMessage *message) -{ - Q_ASSERT(message); - - DBusMessageIter it; - if (!dbus_message_iter_init(message, &it)) - return; - - do { - list.append(qFetchParameter(&it)); - } while (dbus_message_iter_next(&it)); -} - -// convert the variant to the given type and return true if it worked. -// if the type is not known, guess it from the variant and set. -// return false if conversion failed. -static bool checkType(QVariant &var, QDBusType &type) -{ - if (!type.isValid()) { - // guess it from the variant - type = QDBusType::guessFromVariant(var); - return type.isValid(); - } - - int id = var.userType(); - - if (type.dbusType() == DBUS_TYPE_VARIANT) { - // this is a non symmetrical operation: - // nest a QVariant if we want variant and it isn't so - if (id != QDBusTypeHelper<QVariant>::id()) { - QVariant tmp = var; - var = QDBusTypeHelper<QVariant>::toVariant(tmp); - } - return true; - } - - switch (id) { - case QVariant::Bool: - case QMetaType::Short: - case QMetaType::UShort: - case QMetaType::UChar: - case QVariant::Int: - case QVariant::UInt: - case QVariant::LongLong: - case QVariant::ULongLong: - case QVariant::Double: - case QVariant::String: - if (type.isBasic()) - // QVariant can handle this on its own - return true; - - // cannot handle this - qWarning("Invalid conversion from %s to '%s'", var.typeName(), - type.dbusSignature().constData()); - var.clear(); - return false; - - case QVariant::ByteArray: - // make sure it's an "ARRAY of BYTE" - if (type.qvariantType() != QVariant::ByteArray) { - qWarning("Invalid conversion from %s to '%s'", var.typeName(), - type.dbusSignature().constData()); - var.clear(); - return false; - } - return true; - - case QVariant::StringList: - // make sure it's "ARRAY of STRING" - if (type.qvariantType() != QVariant::StringList) { - qWarning("Invalid conversion from %s to '%s'", var.typeName(), - type.dbusSignature().constData()); - var.clear(); - return false; - } - return true; - - case QVariant::List: - // could be either struct or array - if (type.dbusType() != DBUS_TYPE_ARRAY && type.dbusType() != DBUS_TYPE_STRUCT) { - qWarning("Invalid conversion from %s to '%s'", var.typeName(), - type.dbusSignature().constData()); - var.clear(); - return false; - } - - return true; - - case QVariant::Map: - if (!type.isMap()) { - qWarning("Invalid conversion from %s to '%s'", var.typeName(), - type.dbusSignature().constData()); - var.clear(); - return false; - } - - return true; - - case QVariant::Invalid: { - // create an empty variant - void *null = 0; - var = QVariant(type.qvariantType(), null); - break; - } - - default: - if (id == QDBusTypeHelper<QVariant>::id()) { - // if we got here, it means the match above for DBUS_TYPE_VARIANT didn't work - qWarning("Invalid conversion from nested variant to '%s'", - type.dbusSignature().constData()); - return false; - } else if (type.dbusType() == DBUS_TYPE_ARRAY) { - int subType = type.arrayElement().dbusType(); - if ((id == QDBusTypeHelper<bool>::listId() && subType == DBUS_TYPE_BOOLEAN) || - (id == QDBusTypeHelper<short>::listId() && subType == DBUS_TYPE_INT16) || - (id == QDBusTypeHelper<ushort>::listId() && subType == DBUS_TYPE_UINT16) || - (id == QDBusTypeHelper<int>::listId() && subType == DBUS_TYPE_INT32) || - (id == QDBusTypeHelper<uint>::listId() && subType == DBUS_TYPE_UINT32) || - (id == QDBusTypeHelper<qlonglong>::listId() && subType == DBUS_TYPE_INT64) || - (id == QDBusTypeHelper<qulonglong>::listId() && subType == DBUS_TYPE_UINT64) || - (id == QDBusTypeHelper<double>::listId() && subType == DBUS_TYPE_DOUBLE)) - return true; - } - - qWarning("Invalid conversion from %s to '%s'", var.typeName(), - type.dbusSignature().constData()); - return false; - } - - qWarning("Found unknown QVariant type %d (%s) when converting to DBus", (int)var.type(), - var.typeName()); - var.clear(); - return false; -} - -static bool qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var, - const QDBusType &type); - -static bool qListToIterator(DBusMessageIter *it, const QList<QVariant> &list, - const QDBusTypeList &typelist); - -template<typename T> -static void qIterAppend(DBusMessageIter *it, const QDBusType &type, T arg) -{ - dbus_message_iter_append_basic(it, type.dbusType(), &arg); -} - -template<typename DBusType, typename QtType> -static void qAppendListToMessage(DBusMessageIter *it, const QDBusType &subType, - const QVariant &var) -{ - QList<QtType> list = QDBusTypeHelper<QList<QtType> >::fromVariant(var); - foreach (const QtType &item, list) - qIterAppend(it, subType, static_cast<DBusType>(item)); -} - -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); - - switch (var.type()) - { - case QVariant::StringList: { - const QStringList list = var.toStringList(); - foreach (QString str, list) - qIterAppend(&sub, subType, str.toUtf8().constData()); - ok = true; - break; - } - - case QVariant::ByteArray: { - 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(); - 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 - 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); - } - break; - } - - case QVariant::List: { - const QVariantList list = var.toList(); - ok = true; - foreach (QVariant v, list) - 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()) - qAppendListToMessage<dbus_int16_t,short>(&sub, subType, var); - else if (id == QDBusTypeHelper<ushort>::listId()) - qAppendListToMessage<dbus_uint16_t,ushort>(&sub, subType, var); - else if (id == QDBusTypeHelper<int>::listId()) - qAppendListToMessage<dbus_int32_t,int>(&sub, subType, var); - else if (id == QDBusTypeHelper<uint>::listId()) - qAppendListToMessage<dbus_uint32_t,uint>(&sub, subType, var); - else if (id == QDBusTypeHelper<qlonglong>::listId()) - qAppendListToMessage<dbus_int64_t,qlonglong>(&sub, subType, var); - else if (id == QDBusTypeHelper<qulonglong>::listId()) - qAppendListToMessage<dbus_uint64_t,qulonglong>(&sub, subType, var); - else if (id == QDBusTypeHelper<double>::listId()) - qAppendListToMessage<double,double>(&sub, subType, var); -#if 0 // never reached, since QVariant::List mached - else if (id == QDBusTypeHelper<QVariant>::listId()) - qAppendListToMessage<QVariant,QVariant>(&sub, subType, var); -#endif - else { - qFatal("qAppendArrayToMessage got unknown type!"); - ok = false; - } - break; - } - } - - dbus_message_iter_close_container(it, &sub); - return ok; -} - -static bool qAppendStructToMessage(DBusMessageIter *it, const QDBusTypeList &typeList, - const QVariantList &list) -{ - DBusMessageIter sub; - dbus_message_iter_open_container(it, DBUS_TYPE_STRUCT, NULL, &sub); - bool ok = qListToIterator(&sub, list, typeList); - dbus_message_iter_close_container(it, &sub); - return ok; -} - -static bool qAppendVariantToMessage(DBusMessageIter *it, const QDBusType &type, - const QVariant &var) -{ - Q_UNUSED(type); // type is 'v' - - QVariant arg = var; - if (var.userType() == QDBusTypeHelper<QVariant>::id()) - 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 bool qVariantToIterator(DBusMessageIter *it, QVariant var, QDBusType type) -{ - if (!var.isValid()) { - qWarning("QDBusMarshall: invalid QVariant entry found"); - return false; - } - if (!checkType(var, type)) - // warning has been printed - return false; // type checking failed - - return qVariantToIteratorInternal(it, var, type); -} - -static bool qVariantToIteratorInternal(DBusMessageIter *it, const QVariant &var, - const QDBusType &type) -{ - switch (type.dbusType()) { - case DBUS_TYPE_BYTE: - qIterAppend( it, type, QDBusTypeHelper<uchar>::fromVariant(var) ); - break; - case DBUS_TYPE_BOOLEAN: - qIterAppend( it, type, static_cast<dbus_bool_t>(var.toBool()) ); - break; - case DBUS_TYPE_INT16: - qIterAppend( it, type, QDBusTypeHelper<short>::fromVariant(var) ); - break; - case DBUS_TYPE_UINT16: - qIterAppend( it, type, QDBusTypeHelper<ushort>::fromVariant(var) ); - break; - case DBUS_TYPE_INT32: - qIterAppend( it, type, static_cast<dbus_int32_t>(var.toInt()) ); - break; - case DBUS_TYPE_UINT32: - qIterAppend( it, type, static_cast<dbus_uint32_t>(var.toUInt()) ); - break; - case DBUS_TYPE_INT64: - qIterAppend( it, type, static_cast<dbus_int64_t>(var.toLongLong()) ); - break; - case DBUS_TYPE_UINT64: - qIterAppend( it, type, static_cast<dbus_uint64_t>(var.toULongLong()) ); - break; - case DBUS_TYPE_DOUBLE: - qIterAppend( it, type, var.toDouble() ); - break; - case DBUS_TYPE_STRING: - case DBUS_TYPE_OBJECT_PATH: - case DBUS_TYPE_SIGNATURE: - qIterAppend( it, type, var.toString().toUtf8().constData() ); - break; - - // compound types: - case DBUS_TYPE_ARRAY: - // could be many things - return qAppendArrayToMessage( it, type.arrayElement(), var ); - - case DBUS_TYPE_VARIANT: - return qAppendVariantToMessage( it, type, var ); - - case DBUS_TYPE_STRUCT: - return qAppendStructToMessage( it, type.subTypes(), var.toList() ); - - case DBUS_TYPE_DICT_ENTRY: - qFatal("qVariantToIterator got a DICT_ENTRY!"); - return false; - - default: - qWarning("Found unknown DBus type '%s'", type.dbusSignature().constData()); - return false; - } - - return true; -} - -bool qListToIterator(DBusMessageIter *it, const QList<QVariant> &list) -{ - for (int i = 0; i < list.count(); ++i) - if (!qVariantToIterator(it, list.at(i), QDBusType())) - return false; - - return true; -} - -bool qListToIterator(DBusMessageIter *it, const QList<QVariant> &list, const QDBusTypeList &types) -{ - 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; - - return true; -} - -void QDBusMarshall::listToMessage(const QList<QVariant> &list, DBusMessage *msg, - const QString &signature) -{ - Q_ASSERT(msg); - DBusMessageIter it; - dbus_message_iter_init_append(msg, &it); - - if (signature.isEmpty()) - (void) qListToIterator(&it, list); - else - (void) qListToIterator(&it, list, QDBusTypeList(signature.toUtf8())); -} |