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////  DataServerClient.cpp//  hifi////  Created by Stephen Birarda on 10/7/13.//  Copyright (c) 2013 HighFidelity, Inc. All rights reserved.// #include <QtCore/QUrl> #include <NodeList.h>#include <PacketHeaders.h>#include <UDPSocket.h>#include <UUID.h> #include "Application.h"#include "avatar/Profile.h" #include "DataServerClient.h"  std::map<unsigned char*, int> DataServerClient::_unmatchedPackets; const char DATA_SERVER_HOSTNAME[] = "data.highfidelity.io";const unsigned short DATA_SERVER_PORT = 3282;const sockaddr_in DATA_SERVER_SOCKET = socketForHostnameAndHostOrderPort(DATA_SERVER_HOSTNAME, DATA_SERVER_PORT); void DataServerClient::putValueForKey(const char* key, const char* value) {    QString clientString = Application::getInstance()->getProfile()->getUserString();    if (!clientString.isEmpty()) {                unsigned char* putPacket = new unsigned char[MAX_PACKET_SIZE];                // setup the header for this packet        int numPacketBytes = populateTypeAndVersion(putPacket, PACKET_TYPE_DATA_SERVER_PUT);                // pack the client UUID, null terminated        memcpy(putPacket + numPacketBytes, clientString.toLocal8Bit().constData(), clientString.toLocal8Bit().size());        numPacketBytes += clientString.toLocal8Bit().size();        putPacket[numPacketBytes++] = '\0';                // pack the key, null terminated        strcpy((char*) putPacket + numPacketBytes, key);        numPacketBytes += strlen(key);        putPacket[numPacketBytes++] = '\0';                // pack the value, null terminated        strcpy((char*) putPacket + numPacketBytes, value);        numPacketBytes += strlen(value);        putPacket[numPacketBytes++] = '\0';                // add the putPacket to our vector of unconfirmed packets, will be deleted once put is confirmed        _unmatchedPackets.insert(std::pair<unsigned char*, int>(putPacket, numPacketBytes));                // send this put request to the data server        NodeList::getInstance()->getNodeSocket()->send((sockaddr*) &DATA_SERVER_SOCKET, putPacket, numPacketBytes);    }} void DataServerClient::getValueForKeyAndUUID(const char* key, const QUuid &uuid) {    getValuesForKeysAndUUID(QStringList(QString(key)), uuid);} void DataServerClient::getValuesForKeysAndUUID(const QStringList& keys, const QUuid& uuid) {    if (!uuid.isNull()) {        getValuesForKeysAndUserString(keys, uuidStringWithoutCurlyBraces(uuid));    }} void DataServerClient::getValuesForKeysAndUserString(const QStringList& keys, const QString& userString) {    if (!userString.isEmpty()) {        unsigned char* getPacket = new unsigned char[MAX_PACKET_SIZE];                // setup the header for this packet        int numPacketBytes = populateTypeAndVersion(getPacket, PACKET_TYPE_DATA_SERVER_GET);                // pack the user string (could be username or UUID string), null-terminate        memcpy(getPacket + numPacketBytes, userString.toLocal8Bit().constData(), userString.toLocal8Bit().size());        numPacketBytes += userString.toLocal8Bit().size();        getPacket[numPacketBytes++] = '\0';                for (int i = 0; i < keys.size(); ++i) {            // pack the keys, null terminated            strcpy((char*) getPacket + numPacketBytes, keys[i].toLocal8Bit().constData());                        numPacketBytes += keys[i].size();            getPacket[numPacketBytes++] = '\0';        }                // add the getPacket to our vector of uncofirmed packets, will be deleted once we get a response from the nameserver        _unmatchedPackets.insert(std::pair<unsigned char*, int>(getPacket, numPacketBytes));                // send the get to the data server        NodeList::getInstance()->getNodeSocket()->send((sockaddr*) &DATA_SERVER_SOCKET, getPacket, numPacketBytes);    }} void DataServerClient::getClientValueForKey(const char* key) {    getValuesForKeysAndUserString(QStringList(QString(key)), Application::getInstance()->getProfile()->getUserString());} void DataServerClient::processConfirmFromDataServer(unsigned char* packetData, int numPacketBytes) {    removeMatchedPacketFromMap(packetData, numPacketBytes);} void DataServerClient::processSendFromDataServer(unsigned char* packetData, int numPacketBytes) {    // pull the user string from the packet so we know who to associate this with    int numHeaderBytes = numBytesForPacketHeader(packetData);        char* userStringPosition = (char*) packetData + numHeaderBytes;        QString userString(QByteArray(userStringPosition, strlen(userStringPosition)));        QUuid userUUID(userString);        char* dataKeyPosition = (char*) packetData + numHeaderBytes + strlen(userStringPosition) + sizeof('\0');    char* dataValuePosition =  dataKeyPosition + strlen(dataKeyPosition) + sizeof(char);        QString dataValueString(QByteArray(dataValuePosition,                                       numPacketBytes - ((unsigned char*) dataValuePosition - packetData)));        if (userUUID.isNull()) {        // the user string was a username        // for now assume this means that it is for our avatar                if (strcmp(dataKeyPosition, DataServerKey::FaceMeshURL) == 0) {            // pull the user's face mesh and set it on the Avatar instance                        qDebug("Changing user's face model URL to %s\n", dataValueString.toLocal8Bit().constData());            Application::getInstance()->getProfile()->setFaceModelURL(QUrl(dataValueString));        } else if (strcmp(dataKeyPosition, DataServerKey::UUID) == 0) {            // this is the user's UUID - set it on the profile            Application::getInstance()->getProfile()->setUUID(dataValueString);        }    } else {        // user string was UUID, find matching avatar and associate data        if (strcmp(dataKeyPosition, DataServerKey::FaceMeshURL) == 0) {            NodeList* nodeList = NodeList::getInstance();            for (NodeList::iterator node = nodeList->begin(); node != nodeList->end(); node++) {                if (node->getLinkedData() != NULL && node->getType() == NODE_TYPE_AGENT) {                    Avatar* avatar = (Avatar *) node->getLinkedData();                                        if (avatar->getUUID() == userUUID) {                        QMetaObject::invokeMethod(&avatar->getHead().getBlendFace(),                                                  "setModelURL",                                                  Q_ARG(QUrl, QUrl(dataValueString)));                    }                }            }        }    }        // remove the matched packet from  our map so it isn't re-sent to the data-server    removeMatchedPacketFromMap(packetData, numPacketBytes);} void DataServerClient::processMessageFromDataServer(unsigned char* packetData, int numPacketBytes) {    switch (packetData[0]) {        case PACKET_TYPE_DATA_SERVER_SEND:            processSendFromDataServer(packetData, numPacketBytes);            break;        case PACKET_TYPE_DATA_SERVER_CONFIRM:            processConfirmFromDataServer(packetData, numPacketBytes);            break;        default:            break;    }} void DataServerClient::removeMatchedPacketFromMap(unsigned char* packetData, int numPacketBytes) {    for  (std::map<unsigned char*, int>::iterator mapIterator = _unmatchedPackets.begin();          mapIterator != _unmatchedPackets.end();          ++mapIterator) {        if (memcmp(mapIterator->first + sizeof(PACKET_TYPE),                   packetData + sizeof(PACKET_TYPE),                   numPacketBytes - sizeof(PACKET_TYPE)) == 0) {                        // this is a match - remove the confirmed packet from the vector and delete associated member            // so it isn't sent back out            delete[] mapIterator->first;            _unmatchedPackets.erase(mapIterator);                        // we've matched the packet - bail out            break;        }    }} void DataServerClient::resendUnmatchedPackets() {    for  (std::map<unsigned char*, int>::iterator mapIterator = _unmatchedPackets.begin();          mapIterator != _unmatchedPackets.end();          ++mapIterator) {        // send the unmatched packet to the data server        NodeList::getInstance()->getNodeSocket()->send((sockaddr*) &DATA_SERVER_SOCKET,                                                       mapIterator->first,                                                       mapIterator->second);    }}