MessageContent* GroupLeaveMessageContent::fromPacketPayload(FullMessageHeader const& messageHeader, QByteArray const& payload) const {
verifyPayloadMinSizeAndSignatureByte(PROTO_MESSAGE_SIGNATURE_GROUP_LEAVE, 1 + GroupId::getSizeOfGroupIdInBytes(), payload);
GroupId const groupId(GroupId::fromData(payload.mid(1, GroupId::getSizeOfGroupIdInBytes())));
return new GroupLeaveMessageContent(groupId, messageHeader.getSender());
}
MessageContent* ContactTextMessageContent::fromPacketPayload(FullMessageHeader const& messageHeader, QByteArray const& payload) const {
verifyPayloadMinSizeAndSignatureByte(PROTO_MESSAGE_SIGNATURE_CONTACT_TEXT, 2, payload);
QString payloadText(QString::fromUtf8(payload.mid(1)));
return new ContactTextMessageContent(payloadText);
}
MessageContent* GroupTextMessageContent::fromPacketPayload(FullMessageHeader const& messageHeader, QByteArray const& payload) const {
verifyPayloadMinSizeAndSignatureByte(PROTO_MESSAGE_SIGNATURE_GROUP_TEXT, 1 + GroupId::getSizeOfGroupIdInBytes() + 1, payload);
GroupId const groupId(GroupId::fromData(payload.mid(1, GroupId::getSizeOfGroupIdInBytes())));
QString payloadText(QString::fromUtf8(payload.mid(1 + GroupId::getSizeOfGroupIdInBytes())));
return new GroupTextMessageContent(groupId, payloadText);
}
MessageContent* GroupImageIdAndKeyMessageContent::fromPacketPayload(FullMessageHeader const& messageHeader, QByteArray const& payload) const {
verifyPayloadMinSizeAndSignatureByte(PROTO_MESSAGE_SIGNATURE_GROUP_PICTURE, 1 + openmittsu::protocol::GroupId::getSizeOfGroupIdInBytes() + (PROTO_IMAGESERVER_ID_LENGTH_BYTES)+4 + openmittsu::crypto::EncryptionKey::getSizeOfEncryptionKeyInBytes(), payload, true);
int startingPosition = 1;
openmittsu::protocol::GroupId const group(openmittsu::protocol::GroupId::fromData(payload.mid(startingPosition, openmittsu::protocol::GroupId::getSizeOfGroupIdInBytes())));
startingPosition += openmittsu::protocol::GroupId::getSizeOfGroupIdInBytes();
QByteArray const id(payload.mid(startingPosition, PROTO_IMAGESERVER_ID_LENGTH_BYTES));
startingPosition += PROTO_IMAGESERVER_ID_LENGTH_BYTES;
uint32_t const size = openmittsu::utility::ByteArrayConversions::convert4ByteQByteArrayToQuint32(payload.mid(startingPosition, 4));
startingPosition += 4;
openmittsu::crypto::EncryptionKey const key(payload.mid(startingPosition, openmittsu::crypto::EncryptionKey::getSizeOfEncryptionKeyInBytes()));
return new GroupImageIdAndKeyMessageContent(group, id, key, size);
}
MessageContent* GroupLocationMessageContent::fromPacketPayload(FullMessageHeader const& messageHeader, QByteArray const& payload) const {
verifyPayloadMinSizeAndSignatureByte(PROTO_MESSAGE_SIGNATURE_GROUP_LOCATION, 1 + GroupId::getSizeOfGroupIdInBytes() + 1, payload);
GroupId const groupId(GroupId::fromData(payload.mid(1, GroupId::getSizeOfGroupIdInBytes())));
// Layout of remaining payload:
// 51.719827,9.888894,0.000000\nSome Road 1234
QByteArray const remainingPayload(payload.mid(1 + GroupId::getSizeOfGroupIdInBytes()));
int const positionOfNewLine = remainingPayload.indexOf('\n');
if (positionOfNewLine == -1) {
throw ProtocolErrorException() << "Could not split payload of a GroupLocationMessage, it does not contain the 0x0A LF splitter.";
}
QString const positions = QString::fromUtf8(remainingPayload.left(positionOfNewLine));
QString const descriptionText = QString::fromUtf8(remainingPayload.mid(positionOfNewLine + 1));
QStringList splitPositions = positions.split(',', QString::SkipEmptyParts);
if (splitPositions.size() != 3) {
throw ProtocolErrorException() << "Could not split payload of a GroupLocationMessage, it contains " << splitPositions.size() << " instead of 3 positions. Input String: " << positions.toStdString();
}
bool ok = false;
double const lat = splitPositions.at(0).toDouble(&ok);
if (!ok) {
throw ProtocolErrorException() << "Could not convert position 1 to double. Input String: " << positions.toStdString();
}
double const lon = splitPositions.at(1).toDouble(&ok);
if (!ok) {
throw ProtocolErrorException() << "Could not convert position 2 to double. Input String: " << positions.toStdString();
}
double const hei = splitPositions.at(2).toDouble(&ok);
if (!ok) {
throw ProtocolErrorException() << "Could not convert position 3 to double. Input String: " << positions.toStdString();
}
return new GroupLocationMessageContent(groupId, lat, lon, hei, descriptionText);
}
