JUCE/extras/Projucer/Source/Utility/Helpers/jucer_VersionInfo.cpp

/*
  ==============================================================================

   This file is part of the JUCE 7 technical preview.
   Copyright (c) 2022 - Raw Material Software Limited

   You may use this code under the terms of the GPL v3
   (see www.gnu.org/licenses).

   For the technical preview this file cannot be licensed commercially.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

#include "../../Application/jucer_Headers.h"
#include "jucer_VersionInfo.h"


VersionInfo::VersionInfo (String versionIn, String releaseNotesIn, std::vector<Asset> assetsIn)
    : versionString (std::move (versionIn)),
      releaseNotes (std::move (releaseNotesIn)),
      assets (std::move (assetsIn))
{}

std::unique_ptr<VersionInfo> VersionInfo::fetchFromUpdateServer (const String& versionString)
{
    return fetch ("tags/" + versionString);
}

std::unique_ptr<VersionInfo> VersionInfo::fetchLatestFromUpdateServer()
{
    return fetch ("latest");
}

std::unique_ptr<InputStream> VersionInfo::createInputStreamForAsset (const Asset& asset, int& statusCode)
{
    URL downloadUrl (asset.url);
    StringPairArray responseHeaders;

    return std::unique_ptr<InputStream> (downloadUrl.createInputStream (URL::InputStreamOptions (URL::ParameterHandling::inAddress)
                                                                          .withExtraHeaders ("Accept: application/octet-stream")
                                                                          .withConnectionTimeoutMs (5000)
                                                                          .withResponseHeaders (&responseHeaders)
                                                                          .withStatusCode (&statusCode)
                                                                          .withNumRedirectsToFollow (1)));
}

bool VersionInfo::isNewerVersionThanCurrent()
{
    jassert (versionString.isNotEmpty());

    auto currentTokens = StringArray::fromTokens (ProjectInfo::versionString, ".", {});
    auto thisTokens    = StringArray::fromTokens (versionString, ".", {});

    jassert (thisTokens.size() == 3);

    if (currentTokens[0].getIntValue() == thisTokens[0].getIntValue())
    {
        if (currentTokens[1].getIntValue() == thisTokens[1].getIntValue())
            return currentTokens[2].getIntValue() < thisTokens[2].getIntValue();

        return currentTokens[1].getIntValue() < thisTokens[1].getIntValue();
    }

    return currentTokens[0].getIntValue() < thisTokens[0].getIntValue();
}

std::unique_ptr<VersionInfo> VersionInfo::fetch (const String& endpoint)
{
    URL latestVersionURL ("https://api.github.com/repos/juce-framework/JUCE/releases/" + endpoint);

    std::unique_ptr<InputStream> inStream (latestVersionURL.createInputStream (URL::InputStreamOptions (URL::ParameterHandling::inAddress)
                                                                                 .withConnectionTimeoutMs (5000)));

    if (inStream == nullptr)
        return nullptr;

    auto content = inStream->readEntireStreamAsString();
    auto latestReleaseDetails = JSON::parse (content);

    auto* json = latestReleaseDetails.getDynamicObject();

    if (json == nullptr)
        return nullptr;

    auto versionString = json->getProperty ("tag_name").toString();

    if (versionString.isEmpty())
        return nullptr;

    auto* assets = json->getProperty ("assets").getArray();

    if (assets == nullptr)
        return nullptr;

    auto releaseNotes = json->getProperty ("body").toString();
    std::vector<VersionInfo::Asset> parsedAssets;

    for (auto& asset : *assets)
    {
        if (auto* assetJson = asset.getDynamicObject())
        {
            parsedAssets.push_back ({ assetJson->getProperty ("name").toString(),
                                      assetJson->getProperty ("url").toString() });
            jassert (parsedAssets.back().name.isNotEmpty());
            jassert (parsedAssets.back().url.isNotEmpty());
        }
        else
        {
            jassertfalse;
        }
    }

    return std::unique_ptr<VersionInfo> (new VersionInfo { versionString, releaseNotes, std::move (parsedAssets) });
}