From d717b9d2a70ac778262ba4f525dd7d4972d348cd Mon Sep 17 00:00:00 2001
From: Dirk Hohndel <dirk@hohndel.org>
Date: Tue, 10 Sep 2019 11:19:36 +0100
Subject: [PATCH] Mobile: add helper function to check cloud credentials

This should do the right thing in the various situations of correct &
verified credentials, credentials needing PIN verification, invalid
email/password combination, incorrect PIN, correct PIN.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 mobile-widgets/qmlmanager.cpp | 44 +++++++++++++++++++++++++++++++++++
 mobile-widgets/qmlmanager.h   |  1 +
 2 files changed, 45 insertions(+)

diff --git a/mobile-widgets/qmlmanager.cpp b/mobile-widgets/qmlmanager.cpp
index 605525d67..f55cb0caf 100644
--- a/mobile-widgets/qmlmanager.cpp
+++ b/mobile-widgets/qmlmanager.cpp
@@ -535,6 +535,50 @@ void QMLManager::saveCloudCredentials()
 	}
 }
 
+bool QMLManager::verifyCredentials(QString email, QString password, QString pin)
+{
+	setStartPageText(tr("Testing cloud credentials"));
+	if (pin.isEmpty())
+		appendTextToLog(QStringLiteral("verify credentials for email %1 (no PIN)").arg(email, pin));
+	else
+		appendTextToLog(QStringLiteral("verify credentials for email %1 PIN %2").arg(email, pin));
+	CloudStorageAuthenticate *csa = new CloudStorageAuthenticate(this);
+	csa->backend(email, password, pin);
+	// let's wait here for the signal to avoid too many more nested functions
+	QTimer myTimer;
+	myTimer.setSingleShot(true);
+	QEventLoop loop;
+	connect(csa, &CloudStorageAuthenticate::finishedAuthenticate, &loop, &QEventLoop::quit);
+	connect(&myTimer, &QTimer::timeout, &loop, &QEventLoop::quit);
+	myTimer.start(5000);
+	loop.exec();
+	if (!myTimer.isActive()) {
+		// got no response from the server
+		setStartPageText(RED_FONT + tr("No response from cloud server to validate the credentials") + END_FONT);
+		return false;
+	}
+	myTimer.stop();
+	if (prefs.cloud_verification_status == qPrefCloudStorage::CS_INCORRECT_USER_PASSWD) {
+		appendTextToLog(QStringLiteral("Incorrect email / password combination"));
+		setStartPageText(RED_FONT + tr("Incorrect email / password combination") + END_FONT);
+		return false;
+	} else if (prefs.cloud_verification_status == qPrefCloudStorage::CS_NEED_TO_VERIFY) {
+		if (pin.isEmpty()) {
+			appendTextToLog(QStringLiteral("Cloud credentials require PIN entry"));
+			setStartPageText(RED_FONT + tr("Cloud credentials require verification PIN") + END_FONT);
+		} else {
+			appendTextToLog(QStringLiteral("PIN provided but not accepted"));
+			setStartPageText(RED_FONT + tr("Incorrect PIN, please try again") + END_FONT);
+		}
+		QMLPrefs::instance()->setShowPin(true);
+		return false;
+	} else if (prefs.cloud_verification_status == qPrefCloudStorage::CS_VERIFIED) {
+		appendTextToLog(QStringLiteral("PIN accepted"));
+		setStartPageText(RED_FONT + tr("PIN accepted, credentials verified") + END_FONT);
+	}
+	return true;
+}
+
 void QMLManager::tryRetrieveDataFromBackend()
 {
 	// if the cloud credentials are present, we should try to get the GPS Webservice ID
diff --git a/mobile-widgets/qmlmanager.h b/mobile-widgets/qmlmanager.h
index 70fd59f2b..12dbf6f8a 100644
--- a/mobile-widgets/qmlmanager.h
+++ b/mobile-widgets/qmlmanager.h
@@ -148,6 +148,7 @@ public slots:
 	void appInitialized();
 	void applicationStateChanged(Qt::ApplicationState state);
 	void saveCloudCredentials();
+	bool verifyCredentials(QString email, QString password, QString pin);
 	void tryRetrieveDataFromBackend();
 	void handleError(QNetworkReply::NetworkError nError);
 	void handleSslErrors(const QList<QSslError> &errors);