CWE-ou-minkata/Sources/Plasma/PubUtilLib/plAgeLoader/plResPatcher.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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*==LICENSE==*/

#include "plResPatcher.h"
#include "hsResMgr.h"
#include "plgDispatch.h"

#include "plAgeLoader/plAgeLoader.h"
#include "plFile/plEncryptedStream.h"
#include "plFile/plStreamSource.h"
#include "plFile/plSecureStream.h"
#include "plMessage/plResPatcherMsg.h"
#include "pfPatcher/pfPatcher.h"
#include "plProgressMgr/plProgressMgr.h"
#include "plResMgr/plResManager.h"

extern bool gDataServerLocal;
bool gSkipPreload = false;

/////////////////////////////////////////////////////////////////////////////

plResPatcher* plResPatcher::fInstance = nullptr;

plResPatcher* plResPatcher::GetInstance()
{
    if (!fInstance)
        fInstance = new plResPatcher;
    return fInstance;
}

void plResPatcher::Shutdown()
{
    delete fInstance;
}

/////////////////////////////////////////////////////////////////////////////

void plResPatcher::OnCompletion(ENetError result, const plString& status)
{
    plString error = plString::Null;
    if (IS_NET_ERROR(result))
        error = plFormat("Update Failed: {}\n{}", NetErrorAsString(result), status);
    plgDispatch::Dispatch()->MsgQueue(new plResPatcherMsg(IS_NET_SUCCESS(result), error));
}

void plResPatcher::OnFileDownloadBegin(const plFileName& file)
{
    fProgress->SetTitle(plFormat("Downloading {}...", file.GetFileName()));

    if (file.GetFileExt().CompareI("prp") == 0) {
        plResManager* mgr = static_cast<plResManager*>(hsgResMgr::ResMgr());
        if (mgr)
            mgr->RemoveSinglePage(file);
    }
}

void plResPatcher::OnFileDownloaded(const plFileName& file)
{
    if (file.GetFileExt().CompareI("prp") == 0) {
        plResManager* mgr = static_cast<plResManager*>(hsgResMgr::ResMgr());
        if (mgr)
            mgr->AddSinglePage(file);
    }
}

bool plResPatcher::OnGameCodeDiscovered(const plFileName& file, hsStream* stream)
{
    plSecureStream* ss = new plSecureStream(false, plStreamSource::GetInstance()->GetEncryptionKey());
    if (ss->Open(stream)) {
        plStreamSource::GetInstance()->InsertFile(file, ss);

        // SecureStream will hold a decrypted buffer...
        stream->Close();
        delete stream;
    } else
        plStreamSource::GetInstance()->InsertFile(file, stream);

    return true; // ASSume success for now...
}

void plResPatcher::OnProgressTick(uint64_t dl, uint64_t total, const plString& msg)
{
    if (dl && total) {
        fProgress->SetLength(total);
        fProgress->SetHowMuch(dl);
    }

    plString status = plFormat("{} / {}",
        plFileSystem::ConvertFileSize(dl),
        plFileSystem::ConvertFileSize(total)
    );

    fProgress->SetStatusText(status);
    fProgress->SetInfoText(msg);
}

pfPatcher* plResPatcher::CreatePatcher()
{
    pfPatcher* patcher = new pfPatcher;
    patcher->OnCompletion(std::bind(&plResPatcher::OnCompletion, this, std::placeholders::_1, std::placeholders::_2));
    patcher->OnFileDownloadBegin(std::bind(&plResPatcher::OnFileDownloadBegin, this, std::placeholders::_1));
    patcher->OnFileDownloaded(std::bind(&plResPatcher::OnFileDownloaded, this, std::placeholders::_1));
    patcher->OnProgressTick(std::bind(&plResPatcher::OnProgressTick, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));

    // sneaky hax: do the old SecurePreloader thing.... except here
    if (!fRequestedGameCode && !gSkipPreload) {
        patcher->OnGameCodeDiscovery(std::bind(&plResPatcher::OnGameCodeDiscovered, this, std::placeholders::_1, std::placeholders::_2));
        patcher->RequestGameCode();
        fRequestedGameCode = true;
    }

    return patcher;
}

void plResPatcher::InitProgress()
{
    // this is deleted in plAgeLoader::MsgReceive for thread safety
    fProgress = plProgressMgr::GetInstance()->RegisterOperation(0.f, nullptr, plProgressMgr::kUpdateText);
}

/////////////////////////////////////////////////////////////////////////////

plResPatcher::plResPatcher()
    : fProgress(nullptr), fRequestedGameCode(false) { }

plResPatcher::~plResPatcher()
{
    delete fProgress;
}

void plResPatcher::Update(const std::vector<plString>& manifests)
{
    if (gDataServerLocal)
        plgDispatch::Dispatch()->MsgSend(new plResPatcherMsg());
     else {
        InitProgress();
        pfPatcher* patcher = CreatePatcher();
        patcher->RequestManifest(manifests);
        patcher->Start(); // whoosh... off it goes
    }
}

void plResPatcher::Update(const plString& manifest)
{
    if (gDataServerLocal)
        plgDispatch::Dispatch()->MsgSend(new plResPatcherMsg());
    else {
        InitProgress();
        pfPatcher* patcher = CreatePatcher();
        patcher->RequestManifest(manifest);
        patcher->Start(); // whoosh... off it goes
    }
}