pollymc/launcher/minecraft/MojangDownloadInfo.h

#pragma once
#include <QString>
#include <QMap>
#include <memory>

struct MojangDownloadInfo
{
    // types
    typedef std::shared_ptr<MojangDownloadInfo> Ptr;

    // data
    /// Local filesystem path. WARNING: not used, only here so we can pass through mojang files unmolested!
    QString path;
    /// absolute URL of this file
    QString url;
    /// sha-1 checksum of the file
    QString sha1;
    /// size of the file in bytes
    int size;
};



struct MojangLibraryDownloadInfo
{
    MojangLibraryDownloadInfo(MojangDownloadInfo::Ptr artifact): artifact(artifact) {};
    MojangLibraryDownloadInfo() {};

    // types
    typedef std::shared_ptr<MojangLibraryDownloadInfo> Ptr;

    // methods
    MojangDownloadInfo *getDownloadInfo(QString classifier)
    {
        if (classifier.isNull())
        {
            return artifact.get();
        }
        
        return classifiers[classifier].get();
    }

    // data
    MojangDownloadInfo::Ptr artifact;
    QMap<QString, MojangDownloadInfo::Ptr> classifiers;
};



struct MojangAssetIndexInfo : public MojangDownloadInfo
{
    // types
    typedef std::shared_ptr<MojangAssetIndexInfo> Ptr;

    // methods
    MojangAssetIndexInfo()
    {
    }

    MojangAssetIndexInfo(QString id)
    {
        this->id = id;
        // HACK: ignore assets from other version files than Minecraft
        // workaround for stupid assets issue caused by amazon:
        // https://www.theregister.co.uk/2017/02/28/aws_is_awol_as_s3_goes_haywire/
        if(id == "legacy")
        {
            url = "https://piston-meta.mojang.com/mc/assets/legacy/c0fd82e8ce9fbc93119e40d96d5a4e62cfa3f729/legacy.json";
        }
        // HACK
        else
        {
            url = "https://s3.amazonaws.com/Minecraft.Download/indexes/" + id + ".json";
        }
        known = false;
    }

    // data
    int totalSize;
    QString id;
    bool known = true;
};