Microsoft Access data recovery support.

.docker/core.bake.Dockerfile

@@ -9,6 +9,8 @@ ARG BUILD_ROOT
 ARG NUGET_SOURCE_PATH
 ARG PRODUCT=server
 ARG TARGETARCH
+ARG ARCH_TRIPLET=x64-linux-v2
+ARG ARCH_MARCH_FLAGS=-march=x86-64-v2
 
 # Desktop: 24.04 on arm, 22.04 on amd
 FROM ubuntu:22.04 AS vcpkg-base-desktop-amd64
@@ -106,6 +108,7 @@ FROM vcpkg-${NUGET_CACHE} AS core-base
             python3-httplib2 \
             lsb-release autoconf automake libtool findutils \
             gn \
+            mdbtools-dev \
         #&& curl -fsSL https://apt.kitware.com/keys/kitware-archive-latest.asc \
         #    | gpg --dearmor -o /etc/apt/keyrings/kitware.gpg \
         #&& echo "deb [signed-by=/etc/apt/keyrings/kitware.gpg] https://apt.kitware.com/ubuntu/ noble main" \
@@ -147,17 +150,22 @@ FROM vcpkg-${NUGET_CACHE} AS core-base
 #### CORE ####
 FROM core-base AS core
     ARG NUGET_SOURCE_PATH
+    ARG TARGETARCH
+    ARG ARCH_TRIPLET
+    ARG ARCH_MARCH_FLAGS
     RUN --mount=type=cache,target=/build-cache \
         --mount=type=bind,source=${NUGET_SOURCE_PATH},target=/nuget-cache,rw \
         mkdir -p ${BUILD_ROOT} && \
         cd /build-cache && \
         cmake -GNinja \
         -DVCPKG_MANIFEST_MODE=ON \
         -DVCPKG_MANIFEST_DIR=/core \
+        -DVCPKG_OVERLAY_TRIPLETS=/core/triplets \
+        -DVCPKG_TARGET_TRIPLET=${ARCH_TRIPLET} \
         -DCMAKE_TOOLCHAIN_FILE=/opt/vcpkg/scripts/buildsystems/vcpkg.cmake \
         -DCMAKE_BUILD_TYPE=Release \
-        -DCMAKE_CXX_FLAGS_RELEASE="-O3 -w" \
-        -DCMAKE_C_FLAGS_RELEASE="-O3 -w" \
+        -DCMAKE_CXX_FLAGS_RELEASE="-O3 -w ${ARCH_MARCH_FLAGS}" \
+        -DCMAKE_C_FLAGS_RELEASE="-O3 -w ${ARCH_MARCH_FLAGS}" \
         -DEO_CORE_OUTPUT_DIR=/build-cache/package/bin \
         -DEO_CORE_TOOLS_DIR=/build-cache/package/tools \
         /core && \

CMakeLists.txt

@@ -39,6 +39,9 @@ else()
         add_subdirectory( "${CORE_ROOT_DIR}/OfficeUtils/tests" officeutils_test )
         add_subdirectory( "${CORE_ROOT_DIR}/OdfFile/Reader/Converter/SMCustomShape2OOXML/TestSMCustomShape" starmath_smcustomshape_test )
         add_subdirectory( "${CORE_ROOT_DIR}/OdfFile/Test/test_odf" test_odf )
+        add_subdirectory( "${CORE_ROOT_DIR}/Common/tests" common_db_format_test )
+        add_subdirectory( "${CORE_ROOT_DIR}/OOXML/Binary/Sheets/Reader/DatabaseEngines/tests" database_engines_test )
+        add_subdirectory( "${CORE_ROOT_DIR}/OOXML/Binary/Sheets/Reader/tests" database_reader_test )
     endif()
 
 endif()

Common/3dParty/v8/tools/8.9/x64-linux-dynamic/buildgn.patch

@@ -7,7 +7,7 @@ index a8618452794..4ab368a4149 100644
    defines = []
    cflags = []
 +  if (!is_win) {
-+    cflags += ["-include", "cstdint"]
++    cflags += ["-include", "cstdint", "-Wno-enum-constexpr-conversion"]
 +  }
    ldflags = []
 

Common/DatabaseFormats.h

@@ -0,0 +1,46 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2023
+ *
+ * This program is a free software product. You can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License (AGPL)
+ * version 3 as published by the Free Software Foundation. In accordance with
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+#pragma once
+
+#include <string>
+#include <vector>
+
+// Single authoritative source of supported database file extensions (FR-005).
+// COfficeFileFormatChecker::GetFormatByExtension/isOfficeFile/isOnlyOfficeFormatFile
+// and OOXML::DatabaseReader::Read all resolve database extensions through this
+// list instead of each maintaining their own.
+struct DatabaseExtensionEntry
+{
+	std::wstring extension;    // lower-case, leading '.', e.g. L".mdb"
+	int formatConstant;        // one of AVS_OFFICESTUDIO_FILE_SPREADSHEET_*
+	bool requiresContentSniff; // true only for ".db" (ambiguous extension)
+};
+
+const std::vector<DatabaseExtensionEntry>& GetSupportedDatabaseExtensions();
+
+// Three-way content sniff for an ambiguous ".db" extension (FR-004): returns
+// AVS_OFFICESTUDIO_FILE_SPREADSHEET_SQLITE, _MDB, or _BDB based on the file's
+// actual header bytes, not its extension.
+int DetectAmbiguousDbFormat(const std::wstring& sFilePath);