1 files changed, 202 insertions, 0 deletions
diff --git a/libraries/logic/minecraft/auth/flows/AuthenticateTask.cpp b/libraries/logic/minecraft/auth/flows/AuthenticateTask.cpp
new file mode 100644
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--- /dev/null
+++ b/libraries/logic/minecraft/auth/flows/AuthenticateTask.cpp
@@ -0,0 +1,202 @@
+
+/* Copyright 2013-2015 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 "AuthenticateTask.h"
+#include "../MojangAccount.h"
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QVariant>
+
+#include <QDebug>
+#include <QUuid>
+
+AuthenticateTask::AuthenticateTask(MojangAccount * account, const QString &password,
+								   QObject *parent)
+	: YggdrasilTask(account, parent), m_password(password)
+{
+}
+
+QJsonObject AuthenticateTask::getRequestContent() const
+{
+	/*
+	 * {
+	 *   "agent": {								// optional
+	 *   "name": "Minecraft",					// So far this is the only encountered value
+	 *   "version": 1							// This number might be increased
+	 * 											// by the vanilla client in the future
+	 *   },
+	 *   "username": "mojang account name",		// Can be an email address or player name for
+												// unmigrated accounts
+	 *  "password": "mojang account password",
+	 *  "clientToken": "client identifier"		// optional
+	 *  "requestUser": true/false               // request the user structure
+	 * }
+	 */
+	QJsonObject req;
+
+	{
+		QJsonObject agent;
+		// C++ makes string literals void* for some stupid reason, so we have to tell it
+		// QString... Thanks Obama.
+		agent.insert("name", QString("Minecraft"));
+		agent.insert("version", 1);
+		req.insert("agent", agent);
+	}
+
+	req.insert("username", m_account->username());
+	req.insert("password", m_password);
+	req.insert("requestUser", true);
+
+	// If we already have a client token, give it to the server.
+	// Otherwise, let the server give us one.
+
+	if(m_account->m_clientToken.isEmpty())
+	{
+		auto uuid = QUuid::createUuid();
+		auto uuidString = uuid.toString().remove('{').remove('-').remove('}');
+		m_account->m_clientToken = uuidString;
+	}
+	req.insert("clientToken", m_account->m_clientToken);
+
+	return req;
+}
+
+void AuthenticateTask::processResponse(QJsonObject responseData)
+{
+	// Read the response data. We need to get the client token, access token, and the selected
+	// profile.
+	qDebug() << "Processing authentication response.";
+	// qDebug() << responseData;
+	// If we already have a client token, make sure the one the server gave us matches our
+	// existing one.
+	qDebug() << "Getting client token.";
+	QString clientToken = responseData.value("clientToken").toString("");
+	if (clientToken.isEmpty())
+	{
+		// Fail if the server gave us an empty client token
+		changeState(STATE_FAILED_HARD, tr("Authentication server didn't send a client token."));
+		return;
+	}
+	if (!m_account->m_clientToken.isEmpty() && clientToken != m_account->m_clientToken)
+	{
+		changeState(STATE_FAILED_HARD, tr("Authentication server attempted to change the client token. This isn't supported."));
+		return;
+	}
+	// Set the client token.
+	m_account->m_clientToken = clientToken;
+
+	// Now, we set the access token.
+	qDebug() << "Getting access token.";
+	QString accessToken = responseData.value("accessToken").toString("");
+	if (accessToken.isEmpty())
+	{
+		// Fail if the server didn't give us an access token.
+		changeState(STATE_FAILED_HARD, tr("Authentication server didn't send an access token."));
+		return;
+	}
+	// Set the access token.
+	m_account->m_accessToken = accessToken;
+
+	// Now we load the list of available profiles.
+	// Mojang hasn't yet implemented the profile system,
+	// but we might as well support what's there so we
+	// don't have trouble implementing it later.
+	qDebug() << "Loading profile list.";
+	QJsonArray availableProfiles = responseData.value("availableProfiles").toArray();
+	QList<AccountProfile> loadedProfiles;
+	for (auto iter : availableProfiles)
+	{
+		QJsonObject profile = iter.toObject();
+		// Profiles are easy, we just need their ID and name.
+		QString id = profile.value("id").toString("");
+		QString name = profile.value("name").toString("");
+		bool legacy = profile.value("legacy").toBool(false);
+
+		if (id.isEmpty() || name.isEmpty())
+		{
+			// This should never happen, but we might as well
+			// warn about it if it does so we can debug it easily.
+			// You never know when Mojang might do something truly derpy.
+			qWarning() << "Found entry in available profiles list with missing ID or name "
+						   "field. Ignoring it.";
+		}
+
+		// Now, add a new AccountProfile entry to the list.
+		loadedProfiles.append({id, name, legacy});
+	}
+	// Put the list of profiles we loaded into the MojangAccount object.
+	m_account->m_profiles = loadedProfiles;
+
+	// Finally, we set the current profile to the correct value. This is pretty simple.
+	// We do need to make sure that the current profile that the server gave us
+	// is actually in the available profiles list.
+	// If it isn't, we'll just fail horribly (*shouldn't* ever happen, but you never know).
+	qDebug() << "Setting current profile.";
+	QJsonObject currentProfile = responseData.value("selectedProfile").toObject();
+	QString currentProfileId = currentProfile.value("id").toString("");
+	if (currentProfileId.isEmpty())
+	{
+		changeState(STATE_FAILED_HARD, tr("Authentication server didn't specify a currently selected profile. The account exists, but likely isn't premium."));
+		return;
+	}
+	if (!m_account->setCurrentProfile(currentProfileId))
+	{
+		changeState(STATE_FAILED_HARD, tr("Authentication server specified a selected profile that wasn't in the available profiles list."));
+		return;
+	}
+
+	// this is what the vanilla launcher passes to the userProperties launch param
+	if (responseData.contains("user"))
+	{
+		User u;
+		auto obj = responseData.value("user").toObject();
+		u.id = obj.value("id").toString();
+		auto propArray = obj.value("properties").toArray();
+		for (auto prop : propArray)
+		{
+			auto propTuple = prop.toObject();
+			auto name = propTuple.value("name").toString();
+			auto value = propTuple.value("value").toString();
+			u.properties.insert(name, value);
+		}
+		m_account->m_user = u;
+	}
+
+	// We've made it through the minefield of possible errors. Return true to indicate that
+	// we've succeeded.
+	qDebug() << "Finished reading authentication response.";
+	changeState(STATE_SUCCEEDED);
+}
+
+QString AuthenticateTask::getEndpoint() const
+{
+	return "authenticate";
+}
+
+QString AuthenticateTask::getStateMessage() const
+{
+	switch (m_state)
+	{
+	case STATE_SENDING_REQUEST:
+		return tr("Authenticating: Sending request...");
+	case STATE_PROCESSING_RESPONSE:
+		return tr("Authenticating: Processing response...");
+	default:
+		return YggdrasilTask::getStateMessage();
+	}
+}