1 files changed, 180 insertions, 0 deletions
diff --git a/logic/auth/AuthenticateTask.cpp b/logic/auth/AuthenticateTask.cpp
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+++ b/logic/auth/AuthenticateTask.cpp
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+
+/* Copyright 2013 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 <logic/auth/AuthenticateTask.h>
+
+#include <logic/auth/MojangAccount.h>
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QVariant>
+#include <QDebug>
+
+#include "logger/QsLog.h"
+
+AuthenticateTask::AuthenticateTask(MojangAccountPtr 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
+	 * }
+	 */
+	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", getMojangAccount()->username());
+	req.insert("password", m_password);
+
+	// If we already have a client token, give it to the server.
+	// Otherwise, let the server give us one.
+	if (!getMojangAccount()->clientToken().isEmpty())
+		req.insert("clientToken", getMojangAccount()->clientToken());
+
+	return req;
+}
+
+bool AuthenticateTask::processResponse(QJsonObject responseData)
+{
+	// Read the response data. We need to get the client token, access token, and the selected profile.
+	QLOG_DEBUG() << "Processing authentication response.";
+	
+	// If we already have a client token, make sure the one the server gave us matches our existing one.
+	QLOG_DEBUG() << "Getting client token.";
+	QString clientToken = responseData.value("clientToken").toString("");
+	if (clientToken.isEmpty())
+	{
+		// Fail if the server gave us an empty client token
+		// TODO: Set an error properly to display to the user.
+		QLOG_ERROR() << "Server didn't send a client token.";
+		return false;
+	}
+	if (!getMojangAccount()->clientToken().isEmpty() && clientToken != getMojangAccount()->clientToken())
+	{
+		// The server changed our client token! Obey its wishes, but complain. That's what I do for my parents, so...
+		QLOG_WARN() << "Server changed our client token to '" << clientToken 
+					<< "'. This shouldn't happen, but it isn't really a big deal.";
+	}
+	// Set the client token.
+	getMojangAccount()->setClientToken(clientToken);
+
+
+	// Now, we set the access token.
+	QLOG_DEBUG() << "Getting access token.";
+	QString accessToken = responseData.value("accessToken").toString("");
+	if (accessToken.isEmpty())
+	{
+		// Fail if the server didn't give us an access token.
+		// TODO: Set an error properly to display to the user.
+		QLOG_ERROR() << "Server didn't send an access token.";
+	}
+	// Set the access token.
+	getMojangAccount()->setAccessToken(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.
+	QLOG_DEBUG() << "Loading profile list.";
+	QJsonArray availableProfiles = responseData.value("availableProfiles").toArray();
+	ProfileList 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("");
+
+		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.
+			QLOG_WARN() << "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(AccountProfile(id, name));
+	}
+	// Put the list of profiles we loaded into the MojangAccount object.
+	getMojangAccount()->loadProfiles(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).
+	QLOG_DEBUG() << "Setting current profile.";
+	QJsonObject currentProfile = responseData.value("selectedProfile").toObject();
+	QString currentProfileId = currentProfile.value("id").toString("");
+	if (currentProfileId.isEmpty())
+	{
+		// TODO: Set an error to display to the user.
+		QLOG_ERROR() << "Server didn't specify a currently selected profile.";
+		return false;
+	}
+	if (!getMojangAccount()->setProfile(currentProfileId))
+	{
+		// TODO: Set an error to display to the user.
+		QLOG_ERROR() << "Server specified a selected profile that wasn't in the available profiles list.";
+		return false;
+	}
+	
+	
+	// We've made it through the minefield of possible errors. Return true to indicate that we've succeeded.
+	QLOG_DEBUG() << "Finished reading authentication response.";
+	return true;
+}
+
+QString AuthenticateTask::getEndpoint() const
+{
+	return "authenticate";
+}
+
+QString AuthenticateTask::getStateMessage(const YggdrasilTask::State state) const
+{
+	switch (state)
+	{
+	case STATE_SENDING_REQUEST:
+		return tr("Authenticating: Sending request.");
+	case STATE_PROCESSING_RESPONSE:
+		return tr("Authenticating: Processing response.");
+	default:
+		return YggdrasilTask::getStateMessage(state);
+	}
+}
+