CWE-ou-minkata/Sources/Plasma/FeatureLib/pfPasswordStore/pfPasswordStore.cpp

/*==LICENSE==*

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*==LICENSE==*/

#include "pfPasswordStore.h"
#include "pfPasswordStore_impl.h"

#include "plProduct.h"
#include "plFile/plEncryptedStream.h"

/* Get the pfPasswordStore instance */
pfPasswordStore* pfPasswordStore::Instance()
{
    static pfPasswordStore* store = nullptr;

    if (store == nullptr) {
#ifdef HS_BUILD_FOR_WIN32
        store = new pfWin32PasswordStore();
#else
#ifdef HS_BUILD_FOR_OSX
        store = new pfMacPasswordStore();
#else
        store = new pfFilePasswordStore();
#endif
#endif
    }

    return store;
}



/*****************************************************************************
 ** pfFilePasswordStore                                                     **
 *****************************************************************************/

pfFilePasswordStore::pfFilePasswordStore()
{
    // TODO: Cross-platform CryptKey initialization
    uint32_t* product = (uint32_t*)plProduct::UUID();
    for (int i = 0; i < 4; i++) {
        fCryptKey[i] = product[i];
    }
}


const plString pfFilePasswordStore::GetPassword(const plString& username)
{
    plFileName loginDat = plFileName::Join(plFileSystem::GetInitPath(), "login.dat");
    plString password = plString::Null;

#ifndef PLASMA_EXTERNAL_RELEASE
    // internal builds can use the local init directory
    plFileName local("init\\login.dat");
    if (plFileInfo(local).Exists())
        loginDat = local;
#endif

    hsStream* stream = plEncryptedStream::OpenEncryptedFile(loginDat, fCryptKey);
    if (stream && !stream->AtEnd())
    {
        uint32_t savedKey[4];
        stream->Read(sizeof(savedKey), savedKey);

        if (memcmp(fCryptKey, savedKey, sizeof(savedKey)) == 0 && !stream->AtEnd())
        {
            plString uname = stream->ReadSafeString();
            if (username.CompareI(uname) == 0) {
                password = stream->ReadSafeString();
            }
        }

        stream->Close();
        delete stream;
    }

    return password;
}


bool pfFilePasswordStore::SetPassword(const plString& username, const plString& password)
{
    plFileName loginDat = plFileName::Join(plFileSystem::GetInitPath(), "login.dat");

#ifndef PLASMA_EXTERNAL_RELEASE
    // internal builds can use the local init directory
    plFileName local("init\\login.dat");
    if (plFileInfo(local).Exists())
        loginDat = local;
#endif

    hsStream* stream = plEncryptedStream::OpenEncryptedFileWrite(loginDat, fCryptKey);
    if (stream)
    {
        stream->Write(sizeof(fCryptKey), fCryptKey);
        stream->WriteSafeString(username);
        stream->WriteSafeString(password);

        stream->Close();
        delete stream;

        return true;
    }

    return false;
}