1 files changed, 83 insertions, 0 deletions
diff --git a/x11-misc/sddm/files/sddm-0.20.0-fix-use-development-sessions.patch b/x11-misc/sddm/files/sddm-0.20.0-fix-use-development-sessions.patch
new file mode 100644
index 000000000000..3213828181ca
--- /dev/null
+++ b/x11-misc/sddm/files/sddm-0.20.0-fix-use-development-sessions.patch
@@ -0,0 +1,83 @@
+From 5b702ae986464fe6dbc8557d4b2da725ac1ed175 Mon Sep 17 00:00:00 2001
+From: Fabian Vogt <fvogt@suse.de>
+Date: Mon, 26 Jun 2023 09:52:05 +0200
+Subject: [PATCH] Session: Parse .desktop files manually again
+
+Using QSettings::IniFormat doesn't quite work. Implement a custom parser
+for those files to handle them according to the specification.
+
+Fixes #1745
+---
+ src/common/Session.cpp | 52 +++++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 51 insertions(+), 1 deletion(-)
+
+diff --git a/src/common/Session.cpp b/src/common/Session.cpp
+index 4bb2142ca..5eec64859 100644
+--- a/src/common/Session.cpp
++++ b/src/common/Session.cpp
+@@ -34,6 +34,56 @@
+ const QString s_entryExtention = QStringLiteral(".desktop");
+ 
+ namespace SDDM {
++    // QSettings::IniFormat can't be used to read .desktop files due to different
++    // syntax of values (escape sequences, quoting, automatic QStringList detection).
++    // So implement yet another .desktop file parser.
++    class DesktopFileFormat {
++        static bool readFunc(QIODevice &device, QSettings::SettingsMap &map)
++        {
++            QString currentSectionName;
++            while(!device.atEnd())
++            {
++                // Iterate each line, remove line terminators
++                const auto line = device.readLine().replace("\r", "").replace("\n", "");
++                if(line.isEmpty() || line.startsWith('#'))
++                    continue; // Ignore empty lines and comments
++
++                if(line.startsWith('[')) // Section header
++                {
++                    // Remove [ and ].
++                    currentSectionName = QString::fromUtf8(line.mid(1, line.length() - 2));
++                }
++                else if(int equalsPos = line.indexOf('='); equalsPos > 0) // Key=Value
++                {
++                    const auto key = QString::fromUtf8(line.left(equalsPos));
++
++                    // Read the value, handle escape sequences
++                    auto valueBytes = line.mid(equalsPos + 1);
++                    valueBytes.replace("\\s", " ").replace("\\n", "\n");
++                    valueBytes.replace("\\t", "\t").replace("\\r", "\r");
++                    valueBytes.replace("\\\\", "\\");
++
++                    auto value = QString::fromUtf8(valueBytes);
++                    map.insert(currentSectionName + QLatin1Char('/') + key, value);
++                }
++            }
++
++            return true;
++        }
++    public:
++        // Register the .desktop file format if necessary, return its id.
++        static QSettings::Format format()
++        {
++            static QSettings::Format s_format = QSettings::InvalidFormat;
++            if (s_format == QSettings::InvalidFormat)
++                s_format = QSettings::registerFormat(QStringLiteral("desktop"),
++                                                     DesktopFileFormat::readFunc, nullptr,
++                                                     Qt::CaseSensitive);
++
++            return s_format;
++        }
++    };
++
+     Session::Session()
+         : m_valid(false)
+         , m_type(UnknownSession)
+@@ -169,7 +219,7 @@ namespace SDDM {
+         if (!file.isOpen())
+             return;
+ 
+-        QSettings settings(m_fileName, QSettings::IniFormat);
++        QSettings settings(m_fileName, DesktopFileFormat::format());
+ #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+         settings.setIniCodec("UTF-8");
+ #endif