From: Jiri Slaby <jslaby@suse.cz>
Date: Fri, 5 Jun 2020 09:06:29 +0200
Subject: avoid using deprecated qs?rand
Patch-mainline: no
References: qs?rand

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 src/datovka_shared/crypto/crypto_wrapped.cpp        | 13 +++++++++++++
 src/datovka_shared/utility/strings.cpp              | 11 +++++++++++
 src/main.cpp                                        |  2 ++
 src/main_cli.cpp                                    |  2 ++
 .../gui/dialogue_stored_files.cpp                   | 13 ++++++++++++-
 5 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/src/datovka_shared/crypto/crypto_wrapped.cpp b/src/datovka_shared/crypto/crypto_wrapped.cpp
index b875e00f9174..a5ff23a32c7d 100644
--- a/src/datovka_shared/crypto/crypto_wrapped.cpp
+++ b/src/datovka_shared/crypto/crypto_wrapped.cpp
@@ -25,15 +25,28 @@
 #include "src/datovka_shared/crypto/crypto_pwd.h"
 #include "src/datovka_shared/crypto/crypto_wrapped.h"
 
+#include <QtGlobal>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+ #include <QRandomGenerator>
+#endif
+
 QByteArray randomSalt(unsigned int len)
 {
 	QByteArray salt;
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+	salt.resize(len);
+
+	Q_ASSERT((len % sizeof(quint32)) == 0);
+
+	QRandomGenerator::global()->fillRange((quint32 *)salt.data(), len / sizeof(quint32));
+#else
 	/* Make sure that random generator is initialised. */
 
 	for (unsigned int i = 0; i < len; ++i) {
 		salt.append(qrand() % 256);
 	}
+#endif
 
 	return salt;
 }
diff --git a/src/datovka_shared/utility/strings.cpp b/src/datovka_shared/utility/strings.cpp
index 8b6f25d4be18..01c40c1595c0 100644
--- a/src/datovka_shared/utility/strings.cpp
+++ b/src/datovka_shared/utility/strings.cpp
@@ -23,6 +23,10 @@
 
 #include <QtGlobal> /* qrand() */
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+ #include <QRandomGenerator>
+#endif
+
 #include "src/datovka_shared/utility/strings.h"
 
 QString Utility::generateRandomString(int length)
@@ -34,9 +38,16 @@ QString Utility::generateRandomString(int length)
 	    "!#$%&()*+,-.:=?@[]_{|}~");
 
 	QString randomString;
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+	QRandomGenerator *rnd = QRandomGenerator::global();
+#endif
 
 	for (int i = 0; i < length; ++i) {
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+		int index = rnd->bounded(possibleCharacters.length());
+#else
 		int index = qrand() % possibleCharacters.length();
+#endif
 		QChar nextChar = possibleCharacters.at(index);
 		randomString.append(nextChar);
 	}
diff --git a/src/main.cpp b/src/main.cpp
index 0d3fee1b0320..810d85ddb264 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -96,8 +96,10 @@ int main(int argc, char *argv[])
 		return EXIT_FAILURE;
 	}
 
+#if (QT_VERSION < QT_VERSION_CHECK(5, 10, 0))
 	/* Set random generator. */
 	qsrand(QDateTime::currentDateTime().toTime_t());
+#endif
 
 	/* Log warnings. */
 	GlobInstcs::logPtr->setLogLevelBits(LogDevice::LF_STDERR, LOGSRC_ANY,
diff --git a/src/main_cli.cpp b/src/main_cli.cpp
index d46d93a51880..4bdf36ea8cc3 100644
--- a/src/main_cli.cpp
+++ b/src/main_cli.cpp
@@ -61,8 +61,10 @@ int main(int argc, char *argv[])
 		return EXIT_FAILURE;
 	}
 
+#if (QT_VERSION < QT_VERSION_CHECK(5, 10, 0))
 	/* Set random generator. */
 	qsrand(QDateTime::currentDateTime().toTime_t());
+#endif
 
 	/* Log warnings. */
 	GlobInstcs::logPtr->setLogLevelBits(LogDevice::LF_STDERR, LOGSRC_ANY,
diff --git a/tests/records_management_app/gui/dialogue_stored_files.cpp b/tests/records_management_app/gui/dialogue_stored_files.cpp
index b030ff3481a2..78a752bdb7cd 100644
--- a/tests/records_management_app/gui/dialogue_stored_files.cpp
+++ b/tests/records_management_app/gui/dialogue_stored_files.cpp
@@ -27,6 +27,10 @@
 #include <QtGlobal> // qrand
 #include <QTime>
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+ #include <QRandomGenerator>
+#endif
+
 #include "src/datovka_shared/records_management/conversion.h"
 #include "tests/records_management_app/gui/dialogue_stored_files.h"
 #include "ui_dialogue_stored_files.h"
@@ -143,11 +147,18 @@ void generateIdentifiers(QWidget *parent, QLineEdit &lineEdit)
 		return;
 	}
 
-	qsrand((uint)QTime::currentTime().msec());
 	QStringList strIds;
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
+	auto rnd = QRandomGenerator::global();
+	for (int i = 0; i < num; ++i) {
+		strIds.append(QString::number(rnd->generate()));
+	}
+#else
+	qsrand((uint)QTime::currentTime().msec());
 	for (int i = 0; i < num; ++i) {
 		strIds.append(QString::number(qrand()));
 	}
+#endif
 
 	lineEdit.setText(strIds.join(SEPARATOR));
 }
-- 
2.27.0