axmol/cocos/2d/CCUserDefaultAndroid.cpp

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "CCUserDefault.h"
#include "CCPlatformConfig.h"
#include "platform/CCCommon.h"
#include "base64.h"

#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
#include "platform/android/jni/Java_org_cocos2dx_lib_Cocos2dxHelper.h"

// root name of xml
#define USERDEFAULT_ROOT_NAME    "userDefaultRoot"

#define KEEP_COMPATABILITY

#define XML_FILE_NAME "UserDefault.xml"

#ifdef KEEP_COMPATABILITY
#include "platform/CCFileUtils.h"
#include "../tinyxml2/tinyxml2.h"
#endif

using namespace std;

NS_CC_BEGIN

/**
 * implements of UserDefault
 */

UserDefault* UserDefault::_userDefault = 0;
string UserDefault::_filePath = string("");
bool UserDefault::_isFilePathInitialized = false;

#ifdef KEEP_COMPATABILITY
static tinyxml2::XMLElement* getXMLNodeForKey(const char* pKey, tinyxml2::XMLDocument **doc)
{
    tinyxml2::XMLElement* curNode = nullptr;
    tinyxml2::XMLElement* rootNode = nullptr;
    
    if (! UserDefault::isXMLFileExist())
    {
        return nullptr;
    }
    
    // check the key value
    if (! pKey)
    {
        return nullptr;
    }
    
    do
    {
        tinyxml2::XMLDocument* xmlDoc = new tinyxml2::XMLDocument();
        *doc = xmlDoc;
        ssize_t size;
        char* pXmlBuffer = (char*)FileUtils::getInstance()->getFileData(UserDefault::getInstance()->getXMLFilePath().c_str(), "rb", &size);
        //const char* pXmlBuffer = (const char*)data.getBuffer();
        if(nullptr == pXmlBuffer)
        {
            CCLOG("can not read xml file");
            break;
        }
        xmlDoc->Parse(pXmlBuffer);
		free(pXmlBuffer);
        // get root node
        rootNode = xmlDoc->RootElement();
        if (nullptr == rootNode)
        {
            CCLOG("read root node error");
            break;
        }
        // find the node
        curNode = rootNode->FirstChildElement();
        if (!curNode)
        {
            // There is not xml node, delete xml file.
            remove(UserDefault::getInstance()->getXMLFilePath().c_str());
            
            return nullptr;
        }
        
        while (nullptr != curNode)
        {
            const char* nodeName = curNode->Value();
            if (!strcmp(nodeName, pKey))
            {
                // delete the node
                break;
            }
            
            curNode = curNode->NextSiblingElement();
        }
    } while (0);
    
    return curNode;
}

static void deleteNode(tinyxml2::XMLDocument* doc, tinyxml2::XMLElement* node)
{
    if (node)
    {
        doc->DeleteNode(node);
        doc->SaveFile(UserDefault::getInstance()->getXMLFilePath().c_str());
        delete doc;
    }
}

static void deleteNodeByKey(const char *pKey)
{
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    deleteNode(doc, node);
}
#endif

/**
 * If the user invoke delete UserDefault::getInstance(), should set _userDefault
 * to null to avoid error when he invoke UserDefault::getInstance() later.
 */
UserDefault::~UserDefault()
{
	CC_SAFE_DELETE(_userDefault);
    _userDefault = nullptr;
}

UserDefault::UserDefault()
{
	_userDefault = nullptr;
}

// XXX: deprecated
void UserDefault::purgeSharedUserDefault()
{
    UserDefault::destroyInstance();
}

void UserDefault::destroyInstance()
{
    _userDefault = nullptr;
}

bool UserDefault::getBoolForKey(const char* pKey)
{
    return getBoolForKey(pKey, false);
}

bool UserDefault::getBoolForKey(const char* pKey, bool defaultValue)
{
#ifdef KEEP_COMPATABILITY
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    if (node)
    {
        if (node->FirstChild())
        {
            const char* value = (const char*)node->FirstChild()->Value();
            bool ret = (! strcmp(value, "true"));
            
            // set value in NSUserDefaults
            setBoolForKey(pKey, ret);
            flush();
            
            // delete xmle node
            deleteNode(doc, node);
            
            return ret;
        }
        else
        {
            // delete xmle node
            deleteNode(doc, node);
        }
    }
#endif

    return getBoolForKeyJNI(pKey, defaultValue);
}

int UserDefault::getIntegerForKey(const char* pKey)
{
    return getIntegerForKey(pKey, 0);
}

int UserDefault::getIntegerForKey(const char* pKey, int defaultValue)
{
#ifdef KEEP_COMPATABILITY
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    if (node)
    {
        if (node->FirstChild())
        {
            int ret = atoi((const char*)node->FirstChild()->Value());
            
            // set value in NSUserDefaults
            setIntegerForKey(pKey, ret);
            flush();
            
            // delete xmle node
            deleteNode(doc, node);
            
            return ret;
        }
        else
        {
            // delete xmle node
            deleteNode(doc, node);
        }
    }
#endif
    
	return getIntegerForKeyJNI(pKey, defaultValue);
}

float UserDefault::getFloatForKey(const char* pKey)
{
    return getFloatForKey(pKey, 0.0f);
}

float UserDefault::getFloatForKey(const char* pKey, float defaultValue)
{
#ifdef KEEP_COMPATABILITY
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    if (node)
    {
        if (node->FirstChild())
        {
            float ret = atof((const char*)node->FirstChild()->Value());
            
            // set value in NSUserDefaults
            setFloatForKey(pKey, ret);
            flush();
            
            // delete xmle node
            deleteNode(doc, node);
            
            return ret;
        }
        else
        {
            // delete xmle node
            deleteNode(doc, node);
        }
    }
#endif

    return getFloatForKeyJNI(pKey, defaultValue);
}

double  UserDefault::getDoubleForKey(const char* pKey)
{
    return getDoubleForKey(pKey, 0.0);
}

double UserDefault::getDoubleForKey(const char* pKey, double defaultValue)
{
#ifdef KEEP_COMPATABILITY
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    if (node)
    {
        if (node->FirstChild())
        {
            double ret = atof((const char*)node->FirstChild()->Value());
            
            // set value in NSUserDefaults
            setDoubleForKey(pKey, ret);
            flush();
            
            // delete xmle node
            deleteNode(doc, node);
            
            return ret;
        }
        else
        {
            // delete xmle node
            deleteNode(doc, node);
        }
    }
#endif

	return getDoubleForKeyJNI(pKey, defaultValue);
}

std::string UserDefault::getStringForKey(const char* pKey)
{
    return getStringForKey(pKey, "");
}

string UserDefault::getStringForKey(const char* pKey, const std::string & defaultValue)
{
#ifdef KEEP_COMPATABILITY
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    if (node)
    {
        if (node->FirstChild())
        {
            string ret = (const char*)node->FirstChild()->Value();
            
            // set value in NSUserDefaults
            setStringForKey(pKey, ret);
            flush();
            
            // delete xmle node
            deleteNode(doc, node);
            
            return ret;
        }
        else
        {
            // delete xmle node
            deleteNode(doc, node);
        }
    }
#endif

    return getStringForKeyJNI(pKey, defaultValue.c_str());
}

Data* UserDefault::getDataForKey(const char* pKey)
{
    return getDataForKey(pKey, nullptr);
}

Data* UserDefault::getDataForKey(const char* pKey, Data* defaultValue)
{
#ifdef KEEP_COMPATABILITY
    tinyxml2::XMLDocument* doc = nullptr;
    tinyxml2::XMLElement* node = getXMLNodeForKey(pKey, &doc);
    if (node)
    {
        if (node->FirstChild())
        {
            const char * encodedData = node->FirstChild()->Value();
            
            unsigned char * decodedData;
            int decodedDataLen = base64Decode((unsigned char*)encodedData, (unsigned int)strlen(encodedData), &decodedData);
            
            if (decodedData) {
                Data *ret = Data::create(decodedData, decodedDataLen);
                
                // set value in NSUserDefaults
                setDataForKey(pKey, ret);
                
                free(decodedData);
                flush();
                
                // delete xmle node
                deleteNode(doc, node);
                
                return ret;
            }
        }
        else
        {
            // delete xmle node
            deleteNode(doc, node);
        }
    }
#endif
    
    char * encodedDefaultData = nullptr;
    unsigned int encodedDefaultDataLen = defaultValue ? base64Encode(defaultValue->getBytes(), defaultValue->getSize(), &encodedDefaultData) : 0;
    
    string encodedStr = getStringForKeyJNI(pKey, encodedDefaultData);

    if (encodedDefaultData)
        free(encodedDefaultData);

    CCLOG("ENCODED STRING: --%s--%d", encodedStr.c_str(), encodedStr.length());
    
    Data *ret = defaultValue;
    
    unsigned char * decodedData = nullptr;
    int decodedDataLen = base64Decode((unsigned char*)encodedStr.c_str(), (unsigned int)encodedStr.length(), &decodedData);

    CCLOG("AFTER DECoDE. ret %p defaultValue %p", ret, defaultValue);
    CCLOG("DECoDED DATA: %s %d", decodedData, decodedDataLen);
    
    if (decodedData && decodedDataLen) {
        ret = Data::create(decodedData, decodedDataLen);
        free(decodedData);
    }

    CCLOG("RETURNED %p!", ret);
    
    return ret;
}


void UserDefault::setBoolForKey(const char* pKey, bool value)
{
#ifdef KEEP_COMPATABILITY
    deleteNodeByKey(pKey);
#endif

    return setBoolForKeyJNI(pKey, value);
}

void UserDefault::setIntegerForKey(const char* pKey, int value)
{
#ifdef KEEP_COMPATABILITY
    deleteNodeByKey(pKey);
#endif

    return setIntegerForKeyJNI(pKey, value);
}

void UserDefault::setFloatForKey(const char* pKey, float value)
{
#ifdef KEEP_COMPATABILITY
    deleteNodeByKey(pKey);
#endif

    return setFloatForKeyJNI(pKey, value);
}

void UserDefault::setDoubleForKey(const char* pKey, double value)
{
#ifdef KEEP_COMPATABILITY
    deleteNodeByKey(pKey);
#endif

    return setDoubleForKeyJNI(pKey, value);
}

void UserDefault::setStringForKey(const char* pKey, const std::string & value)
{
#ifdef KEEP_COMPATABILITY
    deleteNodeByKey(pKey);
#endif

    return setStringForKeyJNI(pKey, value.c_str());
}

void UserDefault::setDataForKey(const char* pKey, const Data& value)
{
#ifdef KEEP_COMPATABILITY
    deleteNodeByKey(pKey);
#endif
    
    CCLOG("SET DATA FOR KEY: --%s--%d", value.getBytes(), value.getSize());
    char * encodedData = nullptr;
    unsigned int encodedDataLen = base64Encode(value.getBytes(), value.getSize(), &encodedData);

    CCLOG("SET DATA ENCODED: --%s", encodedData);
    
    setStringForKeyJNI(pKey, encodedData);
    
    if (encodedData)
        free(encodedData);
}

// XXX: deprecated
UserDefault* UserDefault::sharedUserDefault()
{
    return UserDefault::getInstance();
}

UserDefault* UserDefault::getInstance()
{
#ifdef KEEP_COMPATABILITY
    initXMLFilePath();
#endif
    
    if (! _userDefault)
    {
        _userDefault = new UserDefault();
    }

    return _userDefault;
}

bool UserDefault::isXMLFileExist()
{
    FILE *fp = fopen(_filePath.c_str(), "r");
    bool bRet = false;
    
    if (fp)
    {
        bRet = true;
        fclose(fp);
    }
    
    return bRet;
}

void UserDefault::initXMLFilePath()
{
#ifdef KEEP_COMPATABILITY
    if (! _isFilePathInitialized)
    {
        // UserDefault.xml is stored in /data/data/<package-path>/ before v2.1.2
        _filePath += "/data/data/" + getPackageNameJNI() + "/" + XML_FILE_NAME;
        _isFilePathInitialized = true;
    }
#endif
}

// create new xml file
bool UserDefault::createXMLFile()
{
    return false;
}

const string& UserDefault::getXMLFilePath()
{
    return _filePath;
}

void UserDefault::flush()
{
}

NS_CC_END

#endif // (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)