From 9ac7832b859bfcbc88448c4ae0f6dc14b2d54a06 Mon Sep 17 00:00:00 2001
From: Kai Uwe Broulik <kde@privat.broulik.de>
Date: Tue, 15 Aug 2017 14:41:36 +0200
Subject: [File KIO slave] Fix applying special file attributes

QFile does not support special attributes like sticky. This would cause us to always discard them.

BUG: 365795

Differential Revision: https://phabricator.kde.org/D7326
---
 autotests/jobtest.cpp      | 20 ++++++++++++++++++++
 autotests/jobtest.h        |  3 +++
 src/ioslaves/file/file.cpp |  5 +++++
 3 files changed, 28 insertions(+)

diff --git a/autotests/jobtest.cpp b/autotests/jobtest.cpp
index 80a8921..557d1b5 100644
--- a/autotests/jobtest.cpp
+++ b/autotests/jobtest.cpp
@@ -1473,6 +1473,26 @@ void JobTest::chmodFile()
     QFile::remove(filePath);
 }
 
+#ifdef Q_OS_UNIX
+void JobTest::chmodSticky()
+{
+    const QString filePath = homeTmpDir() + "fileForChmodSticky";
+    createTestFile(filePath);
+    KFileItem item(QUrl::fromLocalFile(filePath));
+    const mode_t origPerm = item.permissions();
+    mode_t newPerm = origPerm ^ S_ISVTX;
+    QVERIFY(newPerm != origPerm);
+    KFileItemList items({item});
+    KIO::Job *job = KIO::chmod(items, newPerm, S_ISVTX, QString(), QString(), false, KIO::HideProgressInfo);
+    job->setUiDelegate(nullptr);
+    QVERIFY(job->exec());
+
+    KFileItem newItem(QUrl::fromLocalFile(filePath));
+    QCOMPARE(QString::number(newItem.permissions(), 8), QString::number(newPerm, 8));
+    QFile::remove(filePath);
+}
+#endif
+
 void JobTest::chmodFileError()
 {
     // chown(root) should fail
diff --git a/autotests/jobtest.h b/autotests/jobtest.h
index 96b4264..e3d800a 100644
--- a/autotests/jobtest.h
+++ b/autotests/jobtest.h
@@ -84,6 +84,9 @@ private Q_SLOTS:
 #endif
     void mostLocalUrl();
     void chmodFile();
+#ifdef Q_OS_UNIX
+    void chmodSticky();
+#endif
     void chmodFileError();
     void mimeType();
     void mimeTypeError();
diff --git a/src/ioslaves/file/file.cpp b/src/ioslaves/file/file.cpp
index 47fb0a5..a7f1a47 100644
--- a/src/ioslaves/file/file.cpp
+++ b/src/ioslaves/file/file.cpp
@@ -225,7 +225,12 @@ void FileProtocol::chmod(const QUrl &url, int permissions)
     const QString path(url.toLocalFile());
     const QByteArray _path(QFile::encodeName(path));
     /* FIXME: Should be atomic */
+#ifdef Q_OS_UNIX
+    // QFile::Permissions does not support special attributes like sticky
+    if (::chmod(QFile::encodeName(path).constData(), permissions) == -1 ||
+#else
     if (!QFile::setPermissions(path, modeToQFilePermissions(permissions)) ||
+#endif
             (setACL(_path.data(), permissions, false) == -1) ||
             /* if not a directory, cannot set default ACLs */
             (setACL(_path.data(), permissions, true) == -1 && errno != ENOTDIR)) {
-- 
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