1 files changed, 184 insertions, 0 deletions
diff --git a/src/bookmarks/bookmarkstreeformat_xbel_read.cpp b/src/bookmarks/bookmarkstreeformat_xbel_read.cpp
new file mode 100644
index 00000000..e16eda27
--- /dev/null
+++ b/src/bookmarks/bookmarkstreeformat_xbel_read.cpp
@@ -0,0 +1,184 @@
+/* ============================================================
+ * rekonq
+ * ============================================================
+ * SPDX-License-Identifier: GPL-3.0-only
+ * Copyright (C) 2022 aqua <aqua@iserlohn-fortress.net>
+ * ============================================================
+ * Description: rekonq bookmarks model
+ * ============================================================ */
+
+#include "bookmarkstreeformat_xbel.h"
+#include "bookmarkstreeitem.hpp"
+#include <QDateTime>
+#include <QXmlStreamReader>
+
+inline void readNodeAttributes(BookmarksTreeItem *item, const QXmlStreamAttributes &attributes)
+{
+  // id
+  if (attributes.hasAttribute(xbel::attr_id))
+    item->setData(BookmarksTreeItem::Id, attributes.value(xbel::attr_id).toString());
+
+  // added
+  if (attributes.hasAttribute(xbel::attr_added)) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    auto dateTime = QDateTime::fromString(attributes.value(xbel::attr_added), Qt::ISODate);
+#else
+    auto dateTime = QDateTime::fromString(attributes.value(xbel::attr_added).toString(), Qt::ISODate);
+#endif
+    if (!dateTime.isNull() && dateTime.isValid()) item->setData(BookmarksTreeItem::Added, dateTime);
+  }
+}
+
+inline void readUrlAttributes(BookmarksTreeItem *item, const QXmlStreamAttributes &attributes)
+{
+  // href (required)
+  if (attributes.hasAttribute(xbel::attr_href))
+    item->setData(BookmarksTreeItem::Href, attributes.value(xbel::attr_href).toString());
+
+  // visited
+  if (attributes.hasAttribute(xbel::attr_visited)) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    auto dateTime = QDateTime::fromString(attributes.value(xbel::attr_visited), Qt::ISODate);
+#else
+    auto dateTime = QDateTime::fromString(attributes.value(xbel::attr_visited).toString(), Qt::ISODate);
+#endif
+    if (!dateTime.isNull() && dateTime.isValid()) item->setData(BookmarksTreeItem::Visited, dateTime);
+  }
+
+  // modified
+  if (attributes.hasAttribute(xbel::attr_modified)) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    auto dateTime = QDateTime::fromString(attributes.value(xbel::attr_modified), Qt::ISODate);
+#else
+    auto dateTime = QDateTime::fromString(attributes.value(xbel::attr_modified).toString(), Qt::ISODate);
+#endif
+    if (!dateTime.isNull() && dateTime.isValid()) item->setData(BookmarksTreeItem::Modified, dateTime);
+  }
+}
+
+[[nodiscard]] inline bool readItemAttributes(BookmarksTreeItem *item, const QXmlStreamAttributes &attr)
+{
+  bool has_errors = false;
+
+  switch (item->type()) {
+
+  case BookmarksTreeItem::Root:
+    if (!attr.hasAttribute(xbel::attr_version)) {
+      has_errors = true;
+      // spdlog::error("xbel::read: xbel has no version");
+    }
+    else if (attr.value(xbel::attr_version).compare(QLatin1String{xbel::attr_version_value}) != 0) {
+      has_errors = true;
+      // spdlog::error("xbel::read: unknown xbel version");
+    }
+    readNodeAttributes(item, attr);
+    break;
+
+  case BookmarksTreeItem::Folder:
+    readNodeAttributes(item, attr);
+    if (attr.hasAttribute(xbel::attr_folded))
+      item->setExpanded(attr.value(xbel::attr_folded).compare(QLatin1String{xbel::attr_folded_yes}) != 0);
+    break;
+
+  case BookmarksTreeItem::Separator:
+    break;
+
+  case BookmarksTreeItem::Bookmark:
+    readNodeAttributes(item, attr);
+    readUrlAttributes(item, attr);
+    break;
+
+  case BookmarksTreeItem::Alias:
+    if (!attr.hasAttribute(xbel::attr_ref)) {
+      has_errors = true;
+      // spdlog::error("xbel::read: Alias has no ref");
+    }
+    else
+      item->setData(BookmarksTreeItem::Id, attr.value(xbel::attr_ref).toString());
+    break;
+
+  default:
+    return false;
+  }
+
+  return has_errors;
+}
+
+/**
+ * Recursively parse XBEL
+ * @param reader
+ * @param parent
+ * @return true if there were errors during parsing
+ */
+[[nodiscard]] inline bool readChildElements(QXmlStreamReader &reader, BookmarksTreeItem *parent)
+{
+  bool has_errors = false;
+
+  while (reader.readNextStartElement()) {
+    if (reader.hasError()) {
+      has_errors = true;
+      // spdlog::warn("xbel::read: error during parsing: {}", qUtf8Printable(reader.errorString()));
+    }
+
+    const auto name = reader.name();
+    if (name == xbel::elem_title) { parent->setData(BookmarksTreeItem::Title, reader.readElementText()); }
+    else if (name == xbel::elem_desc) {
+      parent->setData(BookmarksTreeItem::Description, reader.readElementText());
+    }
+    else if (name == xbel::elem_info) {
+      has_errors += readChildElements(reader, parent);
+    }
+    else if (name == xbel::elem_metadata) {
+      if (reader.attributes().value(xbel::elem_metadata_owner) == QLatin1String{xbel::elem_metadata_owner_value})
+        parent->metadata.append(reader.readElementText());
+      else
+        reader.skipCurrentElement();
+    }
+    else if (name == xbel::elem_bookmark) {
+
+      auto *item = new BookmarksTreeItem(BookmarksTreeItem::Bookmark, {}, parent);
+      has_errors += readItemAttributes(item, reader.attributes());
+      if (!parent->appendChild(item)) has_errors = true;
+      has_errors += readChildElements(reader, item);
+    }
+    else if (name == xbel::elem_folder) {
+      auto *item = new BookmarksTreeItem(BookmarksTreeItem::Folder, {}, parent);
+      has_errors += readItemAttributes(item, reader.attributes());
+      if (!parent->appendChild(item)) has_errors = true;
+      has_errors += readChildElements(reader, item);
+    }
+    else if (name == xbel::elem_separator) {
+      auto *item = new BookmarksTreeItem(BookmarksTreeItem::Separator, {}, parent);
+      if (!parent->appendChild(item)) has_errors = true;
+      reader.skipCurrentElement();
+    }
+    else if (name == xbel::elem_alias) {
+      auto *item = new BookmarksTreeItem(BookmarksTreeItem::Alias, {}, parent);
+      item->setData(BookmarksTreeItem::Id, reader.attributes().value(xbel::attr_ref).toString());
+      if (!parent->appendChild(item)) has_errors = true;
+      reader.skipCurrentElement();
+    }
+    else {
+      // spdlog::error("xbel::read: skipping unknown element {} on line {}", qUtf8Printable(name.toString()),
+      // reader.lineNumber());
+      has_errors = true;
+      reader.skipCurrentElement();
+    }
+  }
+
+  return has_errors;
+}
+
+bool xbel::read(QIODevice *device, BookmarksTreeItem *root)
+{
+  if (!device->isOpen()) return false;
+
+  QXmlStreamReader reader(device);
+  if (!reader.readNextStartElement()) return false;
+
+  // parse the top-level item attributes
+  if (reader.name().compare(QLatin1String{elem_xbel}) != 0) return false;
+  if (readItemAttributes(root, reader.attributes())) return false;
+
+  return !readChildElements(reader, root);
+}