GH-469 Implement support for importing and searching for Technic Platform and Solder modpacks

This does not support any custom modpack.jar for 1.6 or newer, it simply uses standard Forge then.
Supports Forge and Fabric, and JAR mods for 1.5 and older.

7 files changed, 678 insertions, 1 deletions

diff --git a/application/pages/modplatform/technic/TechnicData.h b/application/pages/modplatform/technic/TechnicData.h
new file mode 100644
index 00000000..5c746619
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicData.h
@@ -0,0 +1,40 @@
+/* Copyright 2020 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QList>
+#include <QString>
+
+
+namespace Technic {
+struct Modpack {
+    QString slug;
+
+    QString name;
+    QString logoUrl;
+    QString logoName;
+
+    bool broken = true;
+
+    QString url;
+    bool isSolder = false;
+    QString minecraftVersion;
+
+    bool metadataLoaded = false;
+};
+}
+
+Q_DECLARE_METATYPE(Technic::Modpack)
diff --git a/application/pages/modplatform/technic/TechnicModel.cpp b/application/pages/modplatform/technic/TechnicModel.cpp
new file mode 100644
index 00000000..b3d36bac
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicModel.cpp
@@ -0,0 +1,223 @@
+/* Copyright 2020 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "TechnicModel.h"
+#include "Env.h"
+#include "MultiMC.h"
+
+#include <QIcon>
+
+
+Technic::ListModel::ListModel(QObject *parent) : QAbstractListModel(parent)
+{
+}
+
+Technic::ListModel::~ListModel()
+{
+}
+
+QVariant Technic::ListModel::data(const QModelIndex& index, int role) const
+{
+    int pos = index.row();
+    if(pos >= modpacks.size() || pos < 0 || !index.isValid())
+    {
+        return QString("INVALID INDEX %1").arg(pos);
+    }
+
+    Modpack pack = modpacks.at(pos);
+    if(role == Qt::DisplayRole)
+    {
+        return pack.name;
+    }
+    else if(role == Qt::DecorationRole)
+    {
+        if(m_logoMap.contains(pack.logoName))
+        {
+            return (m_logoMap.value(pack.logoName));
+        }
+        QIcon icon = MMC->getThemedIcon("screenshot-placeholder");
+        ((ListModel *)this)->requestLogo(pack.logoName, pack.logoUrl);
+        return icon;
+    }
+    else if(role == Qt::UserRole)
+    {
+        QVariant v;
+        v.setValue(pack);
+        return v;
+    }
+    return QVariant();
+}
+
+int Technic::ListModel::columnCount(const QModelIndex&) const
+{
+    return 1;
+}
+
+int Technic::ListModel::rowCount(const QModelIndex&) const
+{
+    return modpacks.size();
+}
+
+void Technic::ListModel::searchWithTerm(const QString& term)
+{
+    if(currentSearchTerm == term) {
+        return;
+    }
+    currentSearchTerm = term;
+    if(jobPtr) {
+        jobPtr->abort();
+        searchState = ResetRequested;
+        return;
+    }
+    else {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+        searchState = None;
+    }
+    performSearch();
+}
+
+void Technic::ListModel::performSearch()
+{
+    NetJob *netJob = new NetJob("Technic::Search");
+    auto searchUrl = QString(
+        "https://api.technicpack.net/search?build=multimc&q=%1"
+    ).arg(currentSearchTerm);
+    netJob->addNetAction(Net::Download::makeByteArray(QUrl(searchUrl), &response));
+    jobPtr = netJob;
+    jobPtr->start();
+    QObject::connect(netJob, &NetJob::succeeded, this, &ListModel::searchRequestFinished);
+    QObject::connect(netJob, &NetJob::failed, this, &ListModel::searchRequestFailed);
+}
+
+void Technic::ListModel::searchRequestFinished()
+{
+    jobPtr.reset();
+
+    QJsonParseError parse_error;
+    QJsonDocument doc = QJsonDocument::fromJson(response, &parse_error);
+    if(parse_error.error != QJsonParseError::NoError)
+    {
+        qWarning() << "Error while parsing JSON response from Technic at " << parse_error.offset << " reason: " << parse_error.errorString();
+        qWarning() << response;
+        return;
+    }
+
+    QList<Modpack> newList;
+    auto objs = doc["modpacks"].toArray();
+    for (auto technicPack: objs) {
+        Modpack pack;
+        auto technicPackObject = technicPack.toObject();
+        pack.name = technicPackObject["name"].toString();
+        pack.slug = technicPackObject["slug"].toString();
+        if (pack.slug == "vanilla")
+            continue;
+        if (technicPackObject["iconUrl"].isString())
+        {
+            pack.logoUrl = technicPackObject["iconUrl"].toString();
+            pack.logoName = pack.logoUrl.section(QLatin1Char('/'), -1).section(QLatin1Char('.'), 0, 0);
+        }
+        else
+        {
+            pack.logoUrl = "null";
+            pack.logoName = "null";
+        }
+        pack.broken = false;
+        newList.append(pack);
+    }
+    searchState = Finished;
+    beginInsertRows(QModelIndex(), modpacks.size(), modpacks.size() + newList.size() - 1);
+    modpacks.append(newList);
+    endInsertRows();
+}
+
+void Technic::ListModel::getLogo(const QString& logo, const QString& logoUrl, Technic::LogoCallback callback)
+{
+    if(m_logoMap.contains(logo))
+    {
+        callback(ENV.metacache()->resolveEntry("TechnicPacks", QString("logos/%1").arg(logo))->getFullPath());
+    }
+    else
+    {
+        requestLogo(logo, logoUrl);
+    }
+}
+
+void Technic::ListModel::searchRequestFailed()
+{
+    jobPtr.reset();
+
+    if(searchState == ResetRequested)
+    {
+        beginResetModel();
+        modpacks.clear();
+        endResetModel();
+
+        performSearch();
+    }
+    else
+    {
+        searchState = Finished;
+    }
+}
+
+
+void Technic::ListModel::logoLoaded(QString logo, QString out)
+{
+    m_loadingLogos.removeAll(logo);
+    m_logoMap.insert(logo, QIcon(out));
+    for(int i = 0; i < modpacks.size(); i++)
+    {
+        if(modpacks[i].logoName == logo)
+        {
+            emit dataChanged(createIndex(i, 0), createIndex(i, 0), {Qt::DecorationRole});
+        }
+    }
+}
+
+void Technic::ListModel::logoFailed(QString logo)
+{
+    m_failedLogos.append(logo);
+    m_loadingLogos.removeAll(logo);
+}
+
+void Technic::ListModel::requestLogo(QString logo, QString url)
+{
+    if(m_loadingLogos.contains(logo) || m_failedLogos.contains(logo) || logo == "null")
+    {
+        return;
+    }
+
+    MetaEntryPtr entry = ENV.metacache()->resolveEntry("TechnicPacks", QString("logos/%1").arg(logo));
+    NetJob *job = new NetJob(QString("Technic Icon Download %1").arg(logo));
+    job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
+
+    auto fullPath = entry->getFullPath();
+
+    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath]
+    {
+        logoLoaded(logo, fullPath);
+    });
+
+    QObject::connect(job, &NetJob::failed, this, [this, logo]
+    {
+        logoFailed(logo);
+    });
+
+    job->start();
+
+    m_loadingLogos.append(logo);
+}
diff --git a/application/pages/modplatform/technic/TechnicModel.h b/application/pages/modplatform/technic/TechnicModel.h
new file mode 100644
index 00000000..bd0aec69
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicModel.h
@@ -0,0 +1,70 @@
+/* Copyright 2020 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QModelIndex>
+
+#include "TechnicData.h"
+#include "net/NetJob.h"
+
+namespace Technic {
+
+typedef std::function<void(QString)> LogoCallback;
+
+class ListModel : public QAbstractListModel
+{
+    Q_OBJECT
+
+public:
+    ListModel(QObject *parent);
+    virtual ~ListModel();
+
+    virtual QVariant data(const QModelIndex& index, int role) const;
+    virtual int columnCount(const QModelIndex& parent) const;
+    virtual int rowCount(const QModelIndex& parent) const;
+
+    void getLogo(const QString &logo, const QString &logoUrl, LogoCallback callback);
+    void searchWithTerm(const QString & term);
+
+private slots:
+    void searchRequestFinished();
+    void searchRequestFailed();
+
+    void logoFailed(QString logo);
+    void logoLoaded(QString logo, QString out);
+
+private:
+    void performSearch();
+    void requestLogo(QString logo, QString url);
+
+private:
+    QList<Modpack> modpacks;
+    QStringList m_failedLogos;
+    QStringList m_loadingLogos;
+    QMap<QString, QIcon> m_logoMap;
+    QMap<QString, LogoCallback> waitingCallbacks;
+
+    QString currentSearchTerm;
+    enum SearchState {
+        None,
+        ResetRequested,
+        Finished
+    } searchState = None;
+    NetJobPtr jobPtr;
+    QByteArray response;
+};
+
+}
diff --git a/application/pages/modplatform/technic/TechnicPage.cpp b/application/pages/modplatform/technic/TechnicPage.cpp
new file mode 100644
index 00000000..75efd3ed
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicPage.cpp
@@ -0,0 +1,204 @@
+/* Copyright 2013-2020 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include "TechnicPage.h"
+#include "ui_TechnicPage.h"
+
+#include "MultiMC.h"
+#include "dialogs/NewInstanceDialog.h"
+#include "TechnicModel.h"
+#include <QKeyEvent>
+#include "modplatform/technic/SingleZipPackInstallTask.h"
+#include "modplatform/technic/SolderPackInstallTask.h"
+#include "Json.h"
+
+TechnicPage::TechnicPage(NewInstanceDialog* dialog, QWidget *parent)
+    : QWidget(parent), ui(new Ui::TechnicPage), dialog(dialog)
+{
+    ui->setupUi(this);
+    connect(ui->searchButton, &QPushButton::clicked, this, &TechnicPage::triggerSearch);
+    ui->searchEdit->installEventFilter(this);
+    model = new Technic::ListModel(this);
+    ui->packView->setModel(model);
+    connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &TechnicPage::onSelectionChanged);
+}
+
+bool TechnicPage::eventFilter(QObject* watched, QEvent* event)
+{
+    if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
+        QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
+        if (keyEvent->key() == Qt::Key_Return) {
+            triggerSearch();
+            keyEvent->accept();
+            return true;
+        }
+    }
+    return QWidget::eventFilter(watched, event);
+}
+
+TechnicPage::~TechnicPage()
+{
+    delete ui;
+}
+
+bool TechnicPage::shouldDisplay() const
+{
+    return true;
+}
+
+void TechnicPage::openedImpl()
+{
+    dialog->setSuggestedPack();
+}
+
+void TechnicPage::triggerSearch() {
+    model->searchWithTerm(ui->searchEdit->text());
+}
+
+void TechnicPage::onSelectionChanged(QModelIndex first, QModelIndex second)
+{
+    if(!first.isValid())
+    {
+        if(isOpened)
+        {
+            dialog->setSuggestedPack();
+        }
+        //ui->frame->clear();
+        return;
+    }
+
+    current = model->data(first, Qt::UserRole).value<Technic::Modpack>();
+    suggestCurrent();
+}
+
+void TechnicPage::suggestCurrent()
+{
+    if (!isOpened)
+    {
+        return;
+    }
+    if (current.broken)
+    {
+        dialog->setSuggestedPack();
+        return;
+    }
+
+    QString editedLogoName;
+    editedLogoName = "technic_" + current.logoName.section(".", 0, 0);
+    model->getLogo(current.logoName, current.logoUrl, [this, editedLogoName](QString logo)
+    {
+        dialog->setSuggestedIconFromFile(logo, editedLogoName);
+    });
+
+    if (current.metadataLoaded)
+    {
+        metadataLoaded();
+    }
+    else
+    {
+        NetJob *netJob = new NetJob(QString("Technic::PackMeta(%1)").arg(current.name));
+        std::shared_ptr<QByteArray> response = std::make_shared<QByteArray>();
+        QString slug = current.slug;
+        netJob->addNetAction(Net::Download::makeByteArray(QString("https://api.technicpack.net/modpack/%1?build=multimc").arg(slug), response.get()));
+        QObject::connect(netJob, &NetJob::succeeded, this, [this, response, slug]
+        {
+            if (current.slug != slug)
+            {
+                return;
+            }
+            QJsonParseError parse_error;
+            QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
+            QJsonObject obj = doc.object();
+            if(parse_error.error != QJsonParseError::NoError)
+            {
+                qWarning() << "Error while parsing JSON response from Technic at " << parse_error.offset << " reason: " << parse_error.errorString();
+                qWarning() << *response;
+                return;
+            }
+            if (!obj.contains("url"))
+            {
+                qWarning() << "Json doesn't contain an url key";
+                return;
+            }
+            QJsonValueRef url = obj["url"];
+            if (url.isString())
+            {
+                current.url = url.toString();
+            }
+            else
+            {
+                if (!obj.contains("solder"))
+                {
+                    qWarning() << "Json doesn't contain a valid url or solder key";
+                    return;
+                }
+                QJsonValueRef solderUrl = obj["solder"];
+                if (solderUrl.isString())
+                {
+                    current.url = solderUrl.toString();
+                    current.isSolder = true;
+                }
+                else
+                {
+                    qWarning() << "Json doesn't contain a valid url or solder key";
+                    return;
+                }
+            }
+
+            current.minecraftVersion = Json::ensureString(obj, "minecraft", QString(), "__placeholder__");
+            current.metadataLoaded = true;
+            metadataLoaded();
+        });
+        netJob->start();
+    }
+}
+
+// expects current.metadataLoaded to be true
+void TechnicPage::metadataLoaded()
+{
+    /*QString text = "";
+    QString name = current.name;
+
+    if (current.websiteUrl.isEmpty())
+        text = name;
+    else
+        text = "<a href=\"" + current.websiteUrl + "\">" + name + "</a>";
+    if (!current.authors.empty()) {
+        auto authorToStr = [](Technic::ModpackAuthor & author) {
+            if(author.url.isEmpty()) {
+                return author.name;
+            }
+            return QString("<a href=\"%1\">%2</a>").arg(author.url, author.name);
+        };
+        QStringList authorStrs;
+        for(auto & author: current.authors) {
+            authorStrs.push_back(authorToStr(author));
+        }
+        text += tr(" by ") + authorStrs.join(", ");
+    }
+
+    ui->frame->setModText(text);
+    ui->frame->setModDescription(current.description);*/
+    if (!current.isSolder)
+    {
+        dialog->setSuggestedPack(current.name, new Technic::SingleZipPackInstallTask(current.url, current.minecraftVersion));
+    }
+    else
+    {
+        while (current.url.endsWith('/')) current.url.chop(1);
+        dialog->setSuggestedPack(current.name, new Technic::SolderPackInstallTask(current.url + "/modpack/" + current.slug, current.minecraftVersion));
+    }
+}
diff --git a/application/pages/modplatform/technic/TechnicPage.h b/application/pages/modplatform/technic/TechnicPage.h
new file mode 100644
index 00000000..1a10af71
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicPage.h
@@ -0,0 +1,78 @@
+/* Copyright 2013-2020 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QWidget>
+
+#include "pages/BasePage.h"
+#include <MultiMC.h>
+#include "tasks/Task.h"
+#include "TechnicData.h"
+
+namespace Ui
+{
+class TechnicPage;
+}
+
+class NewInstanceDialog;
+
+namespace Technic {
+    class ListModel;
+}
+
+class TechnicPage : public QWidget, public BasePage
+{
+    Q_OBJECT
+
+public:
+    explicit TechnicPage(NewInstanceDialog* dialog, QWidget *parent = 0);
+    virtual ~TechnicPage();
+    virtual QString displayName() const override
+    {
+        return tr("Technic");
+    }
+    virtual QIcon icon() const override
+    {
+        return MMC->getThemedIcon("technic");
+    }
+    virtual QString id() const override
+    {
+        return "technic";
+    }
+    virtual QString helpPage() const override
+    {
+        return "Technic-platform";
+    }
+    virtual bool shouldDisplay() const override;
+
+    void openedImpl() override;
+
+    bool eventFilter(QObject* watched, QEvent* event) override;
+
+private:
+    void suggestCurrent();
+    void metadataLoaded();
+
+private slots:
+    void triggerSearch();
+    void onSelectionChanged(QModelIndex first, QModelIndex second);
+
+private:
+    Ui::TechnicPage *ui = nullptr;
+    NewInstanceDialog* dialog = nullptr;
+    Technic::ListModel* model = nullptr;
+    Technic::Modpack current;
+};
diff --git a/application/pages/modplatform/technic/TechnicPage.ui b/application/pages/modplatform/technic/TechnicPage.ui
new file mode 100644
index 00000000..be56fa82
--- /dev/null
+++ b/application/pages/modplatform/technic/TechnicPage.ui
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>TechnicPage</class>
+ <widget class="QWidget" name="TechnicPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>546</width>
+    <height>405</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QWidget" name="widget" native="true">
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QLineEdit" name="searchEdit"/>
+      </item>
+      <item>
+       <widget class="QPushButton" name="searchButton">
+        <property name="text">
+         <string>Search</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QListView" name="packView">
+     <property name="horizontalScrollBarPolicy">
+      <enum>Qt::ScrollBarAlwaysOff</enum>
+     </property>
+     <property name="alternatingRowColors">
+      <bool>true</bool>
+     </property>
+     <property name="iconSize">
+      <size>
+       <width>48</width>
+       <height>48</height>
+      </size>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/application/pages/modplatform/twitch/TwitchModel.cpp b/application/pages/modplatform/twitch/TwitchModel.cpp
index 9e3c3ad2..5c6c7858 100644
--- a/application/pages/modplatform/twitch/TwitchModel.cpp
+++ b/application/pages/modplatform/twitch/TwitchModel.cpp
@@ -104,7 +104,7 @@ void ListModel::requestLogo(QString logo, QString url)
     job->addNetAction(Net::Download::makeCached(QUrl(url), entry));
 
     auto fullPath = entry->getFullPath();
-    QObject::connect(job, &NetJob::finished, this, [this, logo, fullPath]
+    QObject::connect(job, &NetJob::succeeded, this, [this, logo, fullPath]
     {
         emit logoLoaded(logo, QIcon(fullPath));
         if(waitingCallbacks.contains(logo))