Add a check before offering to create folder

This commit adds a function that checks if a folder can be created at
the url entered in the location bar. This prevents offering to create
folders in locations where the user does not have write permissions.

2 files changed, 22 insertions, 1 deletions

diff --git a/src/dolphinviewcontainer.cpp b/src/dolphinviewcontainer.cpp
index 49615d185..5e8b26293 100644
--- a/src/dolphinviewcontainer.cpp
+++ b/src/dolphinviewcontainer.cpp
@@ -957,6 +957,21 @@ void DolphinViewContainer::slotStatusBarZoomLevelChanged(int zoomLevel)
     m_view->setZoomLevel(zoomLevel);
 }
 
+bool DolphinViewContainer::isFolderCreatable(QUrl url)
+{
+    while (url.isValid()) {
+        url = url.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash);
+        QFileInfo info(url.toLocalFile());
+        if (info.exists()) {
+            return info.isWritable();
+        }
+        if (info.isSymLink()) {
+            return false;
+        }
+    }
+    return false;
+}
+
 void DolphinViewContainer::slotErrorMessageFromView(const QString &message, const int kioErrorCode)
 {
     if (kioErrorCode == KIO::ERR_CANNOT_ENTER_DIRECTORY && m_view->url().scheme() == QStringLiteral("file")
@@ -975,7 +990,7 @@ void DolphinViewContainer::slotErrorMessageFromView(const QString &message, cons
         }
         showMessage(i18nc("@info", "Authorization required to enter this folder."), KMessageWidget::Error, {m_authorizeToEnterFolderAction});
         return;
-    } else if (kioErrorCode == KIO::ERR_DOES_NOT_EXIST && m_view->url().isLocalFile()) {
+    } else if (kioErrorCode == KIO::ERR_DOES_NOT_EXIST && m_view->url().isLocalFile() && isFolderCreatable(m_view->url())) {
         if (!m_createFolderAction) {
             m_createFolderAction = new QAction(this);
             m_createFolderAction->setText(i18nc("@action", "Create missing folder"));
diff --git a/src/dolphinviewcontainer.h b/src/dolphinviewcontainer.h
index 419b9f5b1..4acccdd81 100644
--- a/src/dolphinviewcontainer.h
+++ b/src/dolphinviewcontainer.h
@@ -460,6 +460,12 @@ private:
      */
     QRect preferredSmallStatusBarGeometry();
 
+    /**
+     * Check if a folder can be created at url.
+     * This method supports only local URLs.
+     */
+    bool isFolderCreatable(QUrl url);
+
 protected:
     bool eventFilter(QObject *object, QEvent *event) override;