Task #3964 - Make premium login error more verbose

src/gui/src/PremiumAuth.cpp

@@ -20,6 +20,7 @@
 
 #include <QProcess>
 #include <QCoreApplication>
+#include <stdexcept>
 
 // we use syntool to authenticate because Qt's http library is very
 // unreliable, and since we're writing platform specific code, use the
@@ -32,17 +33,35 @@ QString PremiumAuth::request(const QString& email, const QString& password)
 	QProcess process;
 	process.setReadChannel(QProcess::StandardOutput);
 	process.start(program, args);
+	bool success = process.waitForStarted();
 
-	if (process.waitForStarted())
+	QString out, error;
+	if (success)
 	{
 		// hash password in case it contains interesting chars.
 		QString credentials(email + ":" + hash(password) + "\n");
 		process.write(credentials.toStdString().c_str());
 
 		if (process.waitForFinished()) {
-			return process.readAll();
+			out = process.readAllStandardOutput();
+			error = process.readAllStandardError();
 		}
 	}
 
-	return "";
+	out = out.trimmed();
+	error = error.trimmed();
+
+	if (out.isEmpty() ||
+		!error.isEmpty() ||
+		!success ||
+		process.exitCode() != 0)
+	{
+		throw std::runtime_error(
+			QString("Code: %1\nError: %2")
+				.arg(process.exitCode())
+				.arg(error.isEmpty() ? "Unknown" : error)
+				.toStdString());
+	}
+
+	return out;
 }

src/gui/src/SetupWizard.cpp

@@ -252,12 +252,20 @@ bool SetupWizard::isPremiumLoginValid(QMessageBox& message)
 	QString email = m_pLineEditPremiumEmail->text();
 	QString password = m_pLineEditPremiumPassword->text();
 
-	PremiumAuth auth;
-	QString responseJson = auth.request(email, password);
-
-	if (responseJson.trimmed() == "") {
-		message.setText(tr("Login failed, could not communicate with server."));
-		message.exec();
+	QString responseJson;
+	try
+	{
+		PremiumAuth auth;
+		responseJson = auth.request(email, password);
+	}
+	catch (std::exception& e)
+	{
+		message.critical(
+			this, "Error",
+			tr("Sorry, an error occured while trying to sign in. "
+			   "Please contact the help desk, and provide the "
+			   "following details.\n\n%1")
+			.arg(e.what()));
 		return false;
 	}
 
@@ -268,8 +276,9 @@ bool SetupWizard::isPremiumLoginValid(QMessageBox& message)
 			return true;
 		}
 		else if (boolString == "false") {
-			message.setText(tr("Login failed, invalid email or password."));
-			message.exec();
+			message.critical(
+				this, "Error",
+				tr("Login failed, invalid email or password."));
 			return false;
 		}
 	}
@@ -280,13 +289,16 @@ bool SetupWizard::isPremiumLoginValid(QMessageBox& message)
 			// replace "\n" with real new lines.
 			QString error = errorRegex.cap(1).replace("\\n", "\n");
 
-			message.setText(tr("Login failed, an error occurred.\n\n%1").arg(error));
-			message.exec();
+			message.critical(
+				this, "Error",
+				tr("Login failed, an error occurred.\n\n%1").arg(error));
 			return false;
 		}
 	}
 
-	message.setText(tr("Login failed, an error occurred.\n\nServer response:\n\n%1").arg(responseJson));
-	message.exec();
+	message.critical(
+		this, "Error",
+		tr("Login failed, an error occurred.\n\nServer response:\n\n%1")
+			.arg(responseJson));
 	return false;
 }