First draft of player faces in the login dialog

CMakeLists.txt

@@ -256,6 +256,8 @@ logic/net/HttpMetaCache.h
 logic/net/HttpMetaCache.cpp
 logic/net/LoginTask.h
 logic/net/LoginTask.cpp
+logic/net/SkinDownload.h
+logic/net/SkinDownload.cpp
 
 # legacy instances
 logic/LegacyInstance.h

MultiMC.cpp

@@ -294,6 +294,7 @@ void MultiMC::initHttpMetaCache()
 	m_metacache->addBase("versions", QDir("versions").absolutePath());
 	m_metacache->addBase("libraries", QDir("libraries").absolutePath());
 	m_metacache->addBase("minecraftforge", QDir("mods/minecraftforge").absolutePath());
+	m_metacache->addBase("skins", QDir("playerdata/skins").absolutePath());
 	m_metacache->Load();
 }
 

gui/logindialog.cpp

@@ -17,6 +17,13 @@
 #include "ui_logindialog.h"
 #include "keyring.h"
 #include "gui/platform.h"
+#include "MultiMC.h"
+
+#include <QFile>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonParseError>
+#include "logic/net/HttpMetaCache.h"
 #include <logger/QsLog.h>
 
 LoginDialog::LoginDialog(QWidget *parent, const QString& loginErrMsg) :
@@ -51,6 +58,8 @@ LoginDialog::LoginDialog(QWidget *parent, const QString& loginErrMsg) :
 								   arg(loginErrMsg));
 	}
 	
+	ui->lblFace->setVisible(false);
+
 	resize(minimumSizeHint());
 	layout()->setSizeConstraint(QLayout::SetFixedSize);
 	Keyring * k = Keyring::instance();
@@ -151,13 +160,54 @@ void LoginDialog::userTextChanged ( const QString& user )
 	blockToggles = true;
 	Keyring * k = Keyring::instance();
 	QStringList sl = k->getStoredAccounts("minecraft");
+	bool gotFace = false;
+
 	if(sl.contains(user))
 	{
 		ui->rememberUsernameCheckbox->setChecked(true);
 		QString passwd = k->getPassword("minecraft",user);
 		ui->rememberPasswordCheckbox->setChecked(!passwd.isEmpty());
 		ui->passwordTextBox->setText(passwd);
+
+		QByteArray data;
+		{
+			auto filename = MMC->metacache()->resolveEntry("skins", "skins.json")->getFullPath();
+			QFile listFile(filename);
+			if(!listFile.open(QIODevice::ReadOnly))
+				return;
+			data = listFile.readAll();
+		}
+
+		QJsonParseError jsonError;
+		QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
+		QJsonObject root = jsonDoc.object();
+		QJsonObject mappings = root.value("mappings").toObject();
+
+		if(!mappings[user].isUndefined())
+		{
+			QJsonArray usernames = mappings.value(user).toArray();
+			if(!usernames.isEmpty())
+			{
+				QString mapped_username = usernames[0].toString();
+
+				if(!mapped_username.isEmpty())
+				{
+					QFile fskin(MMC->metacache()->resolveEntry("skins", mapped_username + ".png")->getFullPath());
+					if(fskin.exists())
+					{
+						QPixmap skin(MMC->metacache()->resolveEntry("skins", mapped_username + ".png")->getFullPath());
+						QPixmap face = skin.copy(8, 8, 8, 8).scaled(48, 48, Qt::KeepAspectRatio);
+
+						ui->lblFace->setPixmap(face);
+						gotFace = true;
+					}
+				}
+			}
+		}
 	}
+
+	if(gotFace) ui->lblFace->setVisible(true);
+	else ui->lblFace->setVisible(false);
 	blockToggles = false;
 }
 

gui/logindialog.ui

@@ -23,10 +23,34 @@
    </item>
    <item>
     <layout class="QGridLayout" name="gridLayout">
-     <item row="0" column="0">
+     <item row="0" column="4" rowspan="2">
-      <widget class="QLabel" name="usernameLabel">
+      <widget class="QLabel" name="lblFace">
+       <property name="minimumSize">
+        <size>
+         <width>48</width>
+         <height>48</height>
+        </size>
+       </property>
+       <property name="maximumSize">
+        <size>
+         <width>48</width>
+         <height>48</height>
+        </size>
+       </property>
+       <property name="sizeIncrement">
+        <size>
+         <width>1</width>
+         <height>1</height>
+        </size>
+       </property>
        <property name="text">
-        <string>Username:</string>
+        <string/>
+       </property>
+       <property name="pixmap">
+        <pixmap resource="../multimc.qrc">:/icons/instances/steve</pixmap>
+       </property>
+       <property name="scaledContents">
+        <bool>true</bool>
        </property>
       </widget>
      </item>
@@ -37,6 +61,13 @@
        </property>
       </widget>
      </item>
+     <item row="0" column="0">
+      <widget class="QLabel" name="usernameLabel">
+       <property name="text">
+        <string>Username:</string>
+       </property>
+      </widget>
+     </item>
      <item row="1" column="0">
       <widget class="QLabel" name="passwordLabel">
        <property name="text">
@@ -54,7 +85,7 @@
        </property>
       </widget>
      </item>
-     <item row="0" column="2" rowspan="2">
+     <item row="0" column="5" rowspan="2">
       <widget class="QPushButton" name="forgetButton">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
@@ -111,7 +142,9 @@
    </item>
   </layout>
  </widget>
- <resources/>
+ <resources>
+  <include location="../multimc.qrc"/>
+ </resources>
  <connections>
   <connection>
    <sender>loginButtonBox</sender>

gui/mainwindow.cpp

@@ -57,6 +57,8 @@
 #include "logic/lists/JavaVersionList.h"
 
 #include "logic/net/LoginTask.h"
+#include "logic/net/SkinDownload.h"
+
 #include "logic/BaseInstance.h"
 #include "logic/InstanceFactory.h"
 #include "logic/MinecraftProcess.h"
@@ -517,6 +519,42 @@ void MainWindow::onLoginComplete()
 		tDialog.exec(updateTask);
 		delete updateTask;
 	}
+
+	auto download = new SkinDownload(m_activeLogin.player_name);
+	download->start();
+
+	auto filename = MMC->metacache()->resolveEntry("skins", "skins.json")->getFullPath();
+	QFile listFile(filename);
+
+	// Add skin mapping
+	QByteArray data;
+	{
+		if(!listFile.open(QIODevice::ReadWrite))
+		{
+			QLOG_ERROR() << "Failed to open/make skins list JSON";
+			return;
+		}
+
+		data = listFile.readAll();
+	}
+
+	QJsonParseError jsonError;
+	QJsonDocument jsonDoc = QJsonDocument::fromJson(data, &jsonError);
+	QJsonObject root = jsonDoc.object();
+	QJsonObject mappings = root.value("mappings").toObject();
+	QJsonArray usernames = mappings.value(m_activeLogin.username).toArray();
+
+	if(!usernames.contains(m_activeLogin.player_name))
+	{
+		usernames.prepend(m_activeLogin.player_name);
+		mappings[m_activeLogin.username] = usernames;
+		root["mappings"] = mappings;
+		jsonDoc.setObject(root);
+
+		// QJson hack - shouldn't have to clear the file every time a save happens
+		listFile.resize(0);
+		listFile.write(jsonDoc.toJson());
+	}
 }
 
 void MainWindow::onGameUpdateComplete()

logic/net/SkinDownload.cpp

@@ -0,0 +1,60 @@
+#include "MultiMC.h"
+#include "SkinDownload.h"
+#include "DownloadJob.h"
+#include <pathutils.h>
+
+#include <QImage>
+#include <QPainter>
+#include <QCryptographicHash>
+#include <QFileInfo>
+#include <QDateTime>
+#include <logger/QsLog.h>
+
+SkinDownload::SkinDownload(QString name)
+{
+	m_name = name;
+	m_entry = MMC->metacache()->resolveEntry("skins", name + ".png");
+	m_entry->stale = true;
+	m_url = QUrl("http://skins.minecraft.net/MinecraftSkins/" + name + ".png");
+}
+
+void SkinDownload::start()
+{
+	auto job = new DownloadJob("Player skin: " + m_name);
+
+	job->addCacheDownload(m_url, m_entry);
+	m_job.reset(job);
+
+	connect(m_job.get(), SIGNAL(started()), SLOT(downloadStarted()));
+	connect(m_job.get(), SIGNAL(progress(qint64, qint64)), SLOT(downloadProgress(qint64, qint64)));
+	connect(m_job.get(), SIGNAL(succeeded()), SLOT(downloadSucceeded()));
+	connect(m_job.get(), SIGNAL(failed()), SLOT(downloadFailed()));
+
+	m_job->start();
+}
+
+void SkinDownload::downloadStarted()
+{
+	//QLOG_INFO() << "Started skin download for " << m_name << ".";
+
+	emit started();
+}
+
+void SkinDownload::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
+{
+	emit progress(bytesReceived, bytesTotal);
+}
+
+void SkinDownload::downloadSucceeded()
+{
+	//QLOG_INFO() << "Got skin for " << m_name << ", cropping.";
+
+	emit succeeded();
+}
+
+void SkinDownload::downloadFailed()
+{
+	//QLOG_ERROR() << "Failed to download skin for: " << m_name;
+
+	emit failed();
+}

logic/net/SkinDownload.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "Download.h"
+#include "HttpMetaCache.h"
+#include "DownloadJob.h"
+#include <QFile>
+#include <QTemporaryFile>
+
+class SkinDownload : public QObject
+{
+	Q_OBJECT
+
+public:
+	explicit SkinDownload(QString name);
+	QString m_name;
+	QUrl m_url;
+	MetaEntryPtr m_entry;
+	DownloadJobPtr m_job;
+
+	void start();
+
+protected slots:
+	void downloadStarted();
+	void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);
+	void downloadSucceeded();
+	void downloadFailed();
+
+signals:
+	void started();
+	void progress(qint64 current, qint64 total);
+	void succeeded();
+	void failed();
+
+protected:
+
+};
+
+typedef std::shared_ptr<SkinDownload> SkinDownloadPtr;