From 0d941848af0a5c6516b9f85ed26cc353184d2e8c Mon Sep 17 00:00:00 2001
From: "Peter P. Lupo" <pplupo@gmail.com>
Date: Fri, 31 Jul 2026 20:25:55 -0400
Subject: [PATCH 1/6] Add --convert-to / --print-to-file CLI flags

Handles both before any CEF/Qt UI startup by shelling out to the packaged
x2t converter with a minimal TaskQueueDataConvert XML task (only
m_sFileFrom/m_sFileTo/m_sAllFontsPath; format is auto-detected from file
extensions the same way x2t's own native CLI mode does it).
--print-to-file is an alias that forces PDF output, since x2t's PDF export
is already what Print ultimately produces, so no CEF-driven print pipeline
is needed for either flag.

Also adds src/utils.cpp (the InputArgs namespace main.cpp already relies on)
to CMakeLists.txt's COMMON_SOURCES, where it was missing.

Signed-off-by: Peter P. Lupo <pplupo@gmail.com>
---
 win-linux/CMakeLists.txt        |   3 +
 win-linux/src/chelp.cpp         |   4 +-
 win-linux/src/docautomation.cpp | 113 ++++++++++++++++++++++++++++++++
 win-linux/src/docautomation.h   |  38 +++++++++++
 win-linux/src/main.cpp          |   4 ++
 5 files changed, 161 insertions(+), 1 deletion(-)
 create mode 100644 win-linux/src/docautomation.cpp
 create mode 100644 win-linux/src/docautomation.h

diff --git a/win-linux/CMakeLists.txt b/win-linux/CMakeLists.txt
index b256bacdf..1c5bb5e19 100644
--- a/win-linux/CMakeLists.txt
+++ b/win-linux/CMakeLists.txt
@@ -162,6 +162,7 @@ set(COMMON_HEADERS
     src/cascapplicationmanagerwrapper_private.h
     src/casctabdata.h
     src/utils.h
+    src/docautomation.h
     src/chelp.h
     src/cfilechecker.h
     src/clogger.h
@@ -182,6 +183,8 @@ set(COMMON_HEADERS
 set(COMMON_SOURCES
     src/prop/cmainwindowimpl.cpp
     src/prop/utils.cpp
+    src/utils.cpp
+    src/docautomation.cpp
     src/windows/cmainwindow.cpp
     src/windows/cwindowbase.cpp
     src/windows/ceditorwindow.cpp
diff --git a/win-linux/src/chelp.cpp b/win-linux/src/chelp.cpp
index c359d240c..67d3b2c16 100644
--- a/win-linux/src/chelp.cpp
+++ b/win-linux/src/chelp.cpp
@@ -58,7 +58,9 @@ void CHelp::out()
         "    --unlock-portals disable forced hiding of the Connect to the cloud button on the start page"
         "    --updates-appcast-channel=dev set development URL for updates\n"
         "    --updates-interval=<time> set update check interval in seconds (minimum 30 sec)\n"
-        "    --updates-reset reset all update options\n";
+        "    --updates-reset reset all update options\n"
+        "    <input-file> --convert-to=path/to/output.ext convert a document without starting the UI\n"
+        "    <input-file> --print-to-file=path/to/output.pdf render a document to PDF without starting the UI\n";
 
 #ifdef _WIN32
     FILE *pFile = NULL;
diff --git a/win-linux/src/docautomation.cpp b/win-linux/src/docautomation.cpp
new file mode 100644
index 000000000..22a9c1f74
--- /dev/null
+++ b/win-linux/src/docautomation.cpp
@@ -0,0 +1,113 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2019
+ *
+ * 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
+ *
+*/
+
+#include "docautomation.h"
+#include "cascapplicationmanagerwrapper.h"
+#include "defines.h"
+#include "utils.h"
+#include "../../../desktop-sdk/ChromiumBasedEditors/lib/src/x2t.h"
+#include "../../../core/DesktopEditor/common/File.h"
+#include "../../../core/DesktopEditor/common/StringBuilder.h"
+
+#include <iostream>
+
+namespace {
+    std::wstring GetFlagValue(const std::wstring& flag) {
+        return InputArgs::contains(flag) ? InputArgs::argument_value(flag) : L"";
+    }
+
+    // First non-flag argument is treated as the input file path.
+    std::wstring GetInputFileArg() {
+        for (const auto& arg : InputArgs::arguments()) {
+            if (arg.rfind(L"--", 0) != 0) {
+                return arg;
+            }
+        }
+        return L"";
+    }
+}
+
+bool NSDocAutomation::ShouldRun() {
+    return InputArgs::contains(L"--convert-to") || InputArgs::contains(L"--print-to-file");
+}
+
+int NSDocAutomation::Run() {
+    bool bPrintToFile = InputArgs::contains(L"--print-to-file");
+    std::wstring sOutput = bPrintToFile ? GetFlagValue(L"--print-to-file") : GetFlagValue(L"--convert-to");
+    std::wstring sInput = GetInputFileArg();
+
+    if (sInput.empty() || sOutput.empty()) {
+        std::wcerr << L"Usage: DesktopEditors <input-file> --convert-to=<output-file>" << std::endl;
+        std::wcerr << L"       DesktopEditors <input-file> --print-to-file=<output-file.pdf>" << std::endl;
+        return 1;
+    }
+
+    if (!NSFile::CFileBinary::Exists(sInput)) {
+        std::wcerr << L"Input file not found: " << sInput << std::endl;
+        return 1;
+    }
+
+    // --print-to-file is an alias for --convert-to that forces PDF output,
+    // since x2t's PDF export is already what "Print" ultimately produces.
+    if (bPrintToFile) {
+        std::wstring sPdfExt = L".pdf";
+        if (sOutput.length() < sPdfExt.length() ||
+            0 != sOutput.compare(sOutput.length() - sPdfExt.length(), sPdfExt.length(), sPdfExt)) {
+            sOutput += sPdfExt;
+        }
+    }
+
+    CAscApplicationManagerWrapper& oManager = AscAppManager::getInstance();
+    QString sUserDataPath = Utils::getUserPath() + APP_DATA_PATH;
+    oManager.m_oSettings.SetUserDataPath(sUserDataPath.toStdWString());
+    std::wstring sAppPath = NSFile::GetProcessDirectory();
+    oManager.m_oSettings.file_converter_path = sAppPath + L"/converter";
+
+    // Only m_sFileFrom/m_sFileTo are set, matching x2t's own direct-CLI mode
+    // (`x2t <from> <to>`): format is auto-detected from file extensions.
+    NSStringUtils::CStringBuilder oBuilder;
+    oBuilder.WriteString(L"<?xml version=\"1.0\" encoding=\"utf-8\"?><TaskQueueDataConvert><m_sFileFrom>");
+    oBuilder.WriteEncodeXmlString(sInput);
+    oBuilder.WriteString(L"</m_sFileFrom><m_sFileTo>");
+    oBuilder.WriteEncodeXmlString(sOutput);
+    oBuilder.WriteString(L"</m_sFileTo><m_sAllFontsPath>");
+    oBuilder.WriteEncodeXmlString(oManager.m_oSettings.fonts_cache_info_path + L"/AllFonts.js");
+    oBuilder.WriteString(L"</m_sAllFontsPath></TaskQueueDataConvert>");
+
+    std::wstring sXmlPath = NSFile::CFileBinary::CreateTempFileWithUniqueName(NSFile::CFileBinary::GetTempPath(), L"CLI");
+    NSFile::CFileBinary::SaveToFile(sXmlPath, oBuilder.GetData(), true);
+
+    int nReturnCode = NSX2T::Convert(oManager.m_oSettings.file_converter_path + L"/x2t", sXmlPath, &oManager, true);
+
+    NSFile::CFileBinary::Remove(sXmlPath);
+
+    if (0 == nReturnCode) {
+        std::wcout << L"OK: " << sOutput << std::endl;
+    } else {
+        std::wcerr << L"Conversion failed (x2t exit code " << nReturnCode << L")" << std::endl;
+    }
+
+    return nReturnCode;
+}
diff --git a/win-linux/src/docautomation.h b/win-linux/src/docautomation.h
new file mode 100644
index 000000000..808e350da
--- /dev/null
+++ b/win-linux/src/docautomation.h
@@ -0,0 +1,38 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2019
+ *
+ * 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
+ *
+*/
+
+#ifndef DOCAUTOMATION_H
+#define DOCAUTOMATION_H
+
+// Handles the --convert-to and --print-to-file CLI flags by shelling out to
+// the packaged x2t converter, without starting CEF/Qt UI. --print-to-file is
+// an alias for --convert-to that forces PDF output, since x2t's PDF export is
+// already what "Print" ultimately produces.
+namespace NSDocAutomation {
+    bool ShouldRun();
+    int Run();
+}
+
+#endif // DOCAUTOMATION_H
diff --git a/win-linux/src/main.cpp b/win-linux/src/main.cpp
index 271f9e08c..0562e89d2 100644
--- a/win-linux/src/main.cpp
+++ b/win-linux/src/main.cpp
@@ -39,6 +39,7 @@
 #include "utils.h"
 #include "chelp.h"
 #include "common/File.h"
+#include "docautomation.h"
 #include <QStyleFactory>
 
 
@@ -65,6 +66,9 @@ int main( int argc, char *argv[] )
         return 0;
     }
 #endif
+    if ( NSDocAutomation::ShouldRun() ) {
+        return NSDocAutomation::Run();
+    }
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     qputenv("QT_ENABLE_HIGHDPI_SCALING", "0");
 #else

From f64ed332a52fc5a1bf485d2fceac12e5083d047c Mon Sep 17 00:00:00 2001
From: "Peter P. Lupo" <pplupo@gmail.com>
Date: Sun, 2 Aug 2026 01:02:14 -0400
Subject: [PATCH 2/6] fix: use a plain CAscApplicationManager, not the QObject
 GUI singleton

AscAppManager::getInstance() constructs the full QObject-based
CAscApplicationManagerWrapper, whose private constructor calls
QObject::installEventFilter() -- which segfaults with no live
QCoreApplication, and none exists yet at this point (before any CEF/Qt
startup, which is the entire point of this code path). Switch to a
plain, stack-allocated CAscApplicationManager instead; it only needs
m_oSettings and GetLibraryPathVariable(), both available on the base
class with none of the GUI wiring.

Signed-off-by: Peter P. Lupo <pplupo@gmail.com>
---
 win-linux/src/docautomation.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/win-linux/src/docautomation.cpp b/win-linux/src/docautomation.cpp
index 22a9c1f74..d87b92ce5 100644
--- a/win-linux/src/docautomation.cpp
+++ b/win-linux/src/docautomation.cpp
@@ -24,9 +24,9 @@
 */
 
 #include "docautomation.h"
-#include "cascapplicationmanagerwrapper.h"
 #include "defines.h"
 #include "utils.h"
+#include "../../../desktop-sdk/ChromiumBasedEditors/lib/include/applicationmanager.h"
 #include "../../../desktop-sdk/ChromiumBasedEditors/lib/src/x2t.h"
 #include "../../../core/DesktopEditor/common/File.h"
 #include "../../../core/DesktopEditor/common/StringBuilder.h"
@@ -79,7 +79,11 @@ int NSDocAutomation::Run() {
         }
     }
 
-    CAscApplicationManagerWrapper& oManager = AscAppManager::getInstance();
+    // A plain CAscApplicationManager, not the QObject-based GUI singleton
+    // (AscAppManager::getInstance()) -- that one installs Qt event filters
+    // in its constructor and crashes without a live QCoreApplication, which
+    // doesn't exist yet at this point (before any CEF/Qt startup).
+    CAscApplicationManager oManager;
     QString sUserDataPath = Utils::getUserPath() + APP_DATA_PATH;
     oManager.m_oSettings.SetUserDataPath(sUserDataPath.toStdWString());
     std::wstring sAppPath = NSFile::GetProcessDirectory();

From f05b5467df5cf6e2e2908edea43f74c94a8b590f Mon Sep 17 00:00:00 2001
From: "Peter P. Lupo" <pplupo@gmail.com>
Date: Sun, 2 Aug 2026 02:18:05 -0400
Subject: [PATCH 3/6] fix: write the x2t task XML without a BOM

x2t's XML parser doesn't skip a UTF-8 BOM before <?xml ...?>, so
SaveToFile(..., true) left m_sFileFrom/m_sFileTo unparsed and x2t
failed with "Empty sFileFrom or sFileTo". Confirmed by capturing the
actual generated file (swapped converter/x2t for a wrapper script that
copies argv[1] before delegating to the real binary) and hand-feeding
both the BOM and no-BOM versions to x2t directly: only the no-BOM
version parses and converts successfully.

Signed-off-by: Peter P. Lupo <pplupo@gmail.com>
---
 win-linux/src/docautomation.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/win-linux/src/docautomation.cpp b/win-linux/src/docautomation.cpp
index d87b92ce5..e59a363cf 100644
--- a/win-linux/src/docautomation.cpp
+++ b/win-linux/src/docautomation.cpp
@@ -100,8 +100,11 @@ int NSDocAutomation::Run() {
     oBuilder.WriteEncodeXmlString(oManager.m_oSettings.fonts_cache_info_path + L"/AllFonts.js");
     oBuilder.WriteString(L"</m_sAllFontsPath></TaskQueueDataConvert>");
 
+    // No BOM: x2t's XML parser doesn't skip it, so a BOM before <?xml ...?>
+    // leaves m_sFileFrom/m_sFileTo unparsed ("Empty sFileFrom or sFileTo"),
+    // confirmed by capturing and hand-testing the generated file against x2t.
     std::wstring sXmlPath = NSFile::CFileBinary::CreateTempFileWithUniqueName(NSFile::CFileBinary::GetTempPath(), L"CLI");
-    NSFile::CFileBinary::SaveToFile(sXmlPath, oBuilder.GetData(), true);
+    NSFile::CFileBinary::SaveToFile(sXmlPath, oBuilder.GetData(), false);
 
     int nReturnCode = NSX2T::Convert(oManager.m_oSettings.file_converter_path + L"/x2t", sXmlPath, &oManager, true);
 

From fcdb59016aed0b54cc5954ecc792cf56f6fef2be Mon Sep 17 00:00:00 2001
From: "Peter P. Lupo" <pplupo@gmail.com>
Date: Mon, 3 Aug 2026 01:08:04 -0400
Subject: [PATCH 4/6] Mirror CSimpleConverter's proven x2t task XML instead of
 a minimal one

CSimpleConverter::ThreadProc (fileconverter.h) is what the running
editor's own export/format-conversion actions use, and it sets several
fields the CLI path didn't: explicit m_nFormatTo (rather than relying
on x2t's own from-extension auto-detection), m_sFontDir, m_sTempDir,
and m_bIsNoBase64=false. Match it field for field instead of the
minimal from/to-only task, which parsed correctly by every external
check (x2t reads back the exact bytes written; replaying the exact
captured file by hand against x2t succeeds every time) but still
failed specifically when x2t was forked from this GUI binary.

Signed-off-by: Peter P. Lupo <pplupo@gmail.com>
---
 win-linux/src/docautomation.cpp | 61 ++++++++++++++++++++++++++++-----
 1 file changed, 53 insertions(+), 8 deletions(-)

diff --git a/win-linux/src/docautomation.cpp b/win-linux/src/docautomation.cpp
index e59a363cf..959f3c136 100644
--- a/win-linux/src/docautomation.cpp
+++ b/win-linux/src/docautomation.cpp
@@ -29,9 +29,12 @@
 #include "../../../desktop-sdk/ChromiumBasedEditors/lib/include/applicationmanager.h"
 #include "../../../desktop-sdk/ChromiumBasedEditors/lib/src/x2t.h"
 #include "../../../core/DesktopEditor/common/File.h"
+#include "../../../core/DesktopEditor/common/Directory.h"
 #include "../../../core/DesktopEditor/common/StringBuilder.h"
+#include "../../../core/Common/OfficeFileFormats.h"
 
 #include <iostream>
+#include <map>
 
 namespace {
     std::wstring GetFlagValue(const std::wstring& flag) {
@@ -47,6 +50,30 @@ namespace {
         }
         return L"";
     }
+
+    int FormatFromExtension(const std::wstring& sPath) {
+        static const std::map<std::wstring, int> formats = {
+            { L"docx", AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX },
+            { L"doc",  AVS_OFFICESTUDIO_FILE_DOCUMENT_DOC },
+            { L"odt",  AVS_OFFICESTUDIO_FILE_DOCUMENT_ODT },
+            { L"rtf",  AVS_OFFICESTUDIO_FILE_DOCUMENT_RTF },
+            { L"txt",  AVS_OFFICESTUDIO_FILE_DOCUMENT_TXT },
+            { L"html", AVS_OFFICESTUDIO_FILE_DOCUMENT_HTML },
+            { L"htm",  AVS_OFFICESTUDIO_FILE_DOCUMENT_HTML },
+            { L"pdf",  AVS_OFFICESTUDIO_FILE_CROSSPLATFORM_PDF },
+            { L"xlsx", AVS_OFFICESTUDIO_FILE_SPREADSHEET_XLSX },
+            { L"xls",  AVS_OFFICESTUDIO_FILE_SPREADSHEET_XLS },
+            { L"ods",  AVS_OFFICESTUDIO_FILE_SPREADSHEET_ODS },
+            { L"csv",  AVS_OFFICESTUDIO_FILE_SPREADSHEET_CSV },
+            { L"pptx", AVS_OFFICESTUDIO_FILE_PRESENTATION_PPTX },
+            { L"ppt",  AVS_OFFICESTUDIO_FILE_PRESENTATION_PPT },
+            { L"odp",  AVS_OFFICESTUDIO_FILE_PRESENTATION_ODP },
+        };
+        std::wstring sExt = NSFile::GetFileExtention(sPath);
+        for (auto& c : sExt) c = towlower(c);
+        auto it = formats.find(sExt);
+        return it != formats.end() ? it->second : 0;
+    }
 }
 
 bool NSDocAutomation::ShouldRun() {
@@ -79,6 +106,12 @@ int NSDocAutomation::Run() {
         }
     }
 
+    int nFormatTo = FormatFromExtension(sOutput);
+    if (0 == nFormatTo) {
+        std::wcerr << L"Unsupported output extension: " << sOutput << std::endl;
+        return 1;
+    }
+
     // A plain CAscApplicationManager, not the QObject-based GUI singleton
     // (AscAppManager::getInstance()) -- that one installs Qt event filters
     // in its constructor and crashes without a live QCoreApplication, which
@@ -89,26 +122,38 @@ int NSDocAutomation::Run() {
     std::wstring sAppPath = NSFile::GetProcessDirectory();
     oManager.m_oSettings.file_converter_path = sAppPath + L"/converter";
 
-    // Only m_sFileFrom/m_sFileTo are set, matching x2t's own direct-CLI mode
-    // (`x2t <from> <to>`): format is auto-detected from file extensions.
+    std::wstring sTempDir = NSDirectory::CreateDirectoryWithUniqueName(NSFile::CFileBinary::GetTempPath());
+
+    // Mirrors CSimpleConverter::ThreadProc (fileconverter.h), the class the
+    // running editor uses for its own "export to PDF"/format-conversion
+    // actions, field for field (m_nFormatTo, m_sFontDir, m_sTempDir,
+    // m_bIsNoBase64=false) rather than the minimal from/to-only task this
+    // originally sent -- that minimal form parsed correctly by every
+    // external check (x2t reads back the exact bytes written, and replaying
+    // the exact captured file by hand against x2t succeeds every time) but
+    // still failed specifically when x2t was forked from this GUI binary.
     NSStringUtils::CStringBuilder oBuilder;
     oBuilder.WriteString(L"<?xml version=\"1.0\" encoding=\"utf-8\"?><TaskQueueDataConvert><m_sFileFrom>");
     oBuilder.WriteEncodeXmlString(sInput);
     oBuilder.WriteString(L"</m_sFileFrom><m_sFileTo>");
     oBuilder.WriteEncodeXmlString(sOutput);
-    oBuilder.WriteString(L"</m_sFileTo><m_sAllFontsPath>");
+    oBuilder.WriteString(L"</m_sFileTo><m_nFormatTo>");
+    oBuilder.WriteString(std::to_wstring(nFormatTo));
+    oBuilder.WriteString(L"</m_nFormatTo><m_sFontDir>");
+    oBuilder.WriteEncodeXmlString(oManager.m_oSettings.fonts_cache_info_path);
+    oBuilder.WriteString(L"</m_sFontDir><m_bIsNoBase64>false</m_bIsNoBase64><m_sAllFontsPath>");
     oBuilder.WriteEncodeXmlString(oManager.m_oSettings.fonts_cache_info_path + L"/AllFonts.js");
-    oBuilder.WriteString(L"</m_sAllFontsPath></TaskQueueDataConvert>");
+    oBuilder.WriteString(L"</m_sAllFontsPath><m_sTempDir>");
+    oBuilder.WriteEncodeXmlString(sTempDir);
+    oBuilder.WriteString(L"</m_sTempDir></TaskQueueDataConvert>");
 
-    // No BOM: x2t's XML parser doesn't skip it, so a BOM before <?xml ...?>
-    // leaves m_sFileFrom/m_sFileTo unparsed ("Empty sFileFrom or sFileTo"),
-    // confirmed by capturing and hand-testing the generated file against x2t.
     std::wstring sXmlPath = NSFile::CFileBinary::CreateTempFileWithUniqueName(NSFile::CFileBinary::GetTempPath(), L"CLI");
-    NSFile::CFileBinary::SaveToFile(sXmlPath, oBuilder.GetData(), false);
+    NSFile::CFileBinary::SaveToFile(sXmlPath, oBuilder.GetData(), true);
 
     int nReturnCode = NSX2T::Convert(oManager.m_oSettings.file_converter_path + L"/x2t", sXmlPath, &oManager, true);
 
     NSFile::CFileBinary::Remove(sXmlPath);
+    NSDirectory::DeleteDirectory(sTempDir);
 
     if (0 == nReturnCode) {
         std::wcout << L"OK: " << sOutput << std::endl;

From 0571acb6e11a7199d0de359078b166c946761c76 Mon Sep 17 00:00:00 2001
From: "Peter P. Lupo" <pplupo@gmail.com>
Date: Mon, 3 Aug 2026 02:23:09 -0400
Subject: [PATCH 5/6] fix: name the x2t task file with a .xml suffix

This was the actual cause of "Empty sFileFrom or sFileTo". x2t only
parses its argument as a TaskQueueDataConvert file when the filename
ends in ".xml" (X2tConverter/src/main.cpp); any other name is taken as
the first half of a bare `x2t <from> <to>` invocation, so the
destination came through empty. CreateTempFileWithUniqueName produces
/tmp/CLI_XXXXXX with no extension, while every other call site in the
tree appends one (params_simple_converter.xml, _params_from.xml).

Proven with a controlled A/B: the same bytes as /tmp/probe_with.xml
convert successfully (exit 0, valid PDF), and as /tmp/probe_without
fail with exactly this error.

This also supersedes the earlier "write the x2t task XML without a
BOM" commit -- the BOM was never the problem (upstream writes one and
works); every manual replay that appeared to prove it happened to use
a .xml-named copy, which is what actually made those runs succeed.

Also drops the hand-rolled extension->format map added in the previous
commit: x2t already derives both formats from the file extensions, so
duplicating that table here only risks drift.

Signed-off-by: Peter P. Lupo <pplupo@gmail.com>
---
 win-linux/src/docautomation.cpp | 58 ++++++++-------------------------
 1 file changed, 13 insertions(+), 45 deletions(-)

diff --git a/win-linux/src/docautomation.cpp b/win-linux/src/docautomation.cpp
index 959f3c136..27e485237 100644
--- a/win-linux/src/docautomation.cpp
+++ b/win-linux/src/docautomation.cpp
@@ -31,10 +31,8 @@
 #include "../../../core/DesktopEditor/common/File.h"
 #include "../../../core/DesktopEditor/common/Directory.h"
 #include "../../../core/DesktopEditor/common/StringBuilder.h"
-#include "../../../core/Common/OfficeFileFormats.h"
 
 #include <iostream>
-#include <map>
 
 namespace {
     std::wstring GetFlagValue(const std::wstring& flag) {
@@ -50,30 +48,6 @@ namespace {
         }
         return L"";
     }
-
-    int FormatFromExtension(const std::wstring& sPath) {
-        static const std::map<std::wstring, int> formats = {
-            { L"docx", AVS_OFFICESTUDIO_FILE_DOCUMENT_DOCX },
-            { L"doc",  AVS_OFFICESTUDIO_FILE_DOCUMENT_DOC },
-            { L"odt",  AVS_OFFICESTUDIO_FILE_DOCUMENT_ODT },
-            { L"rtf",  AVS_OFFICESTUDIO_FILE_DOCUMENT_RTF },
-            { L"txt",  AVS_OFFICESTUDIO_FILE_DOCUMENT_TXT },
-            { L"html", AVS_OFFICESTUDIO_FILE_DOCUMENT_HTML },
-            { L"htm",  AVS_OFFICESTUDIO_FILE_DOCUMENT_HTML },
-            { L"pdf",  AVS_OFFICESTUDIO_FILE_CROSSPLATFORM_PDF },
-            { L"xlsx", AVS_OFFICESTUDIO_FILE_SPREADSHEET_XLSX },
-            { L"xls",  AVS_OFFICESTUDIO_FILE_SPREADSHEET_XLS },
-            { L"ods",  AVS_OFFICESTUDIO_FILE_SPREADSHEET_ODS },
-            { L"csv",  AVS_OFFICESTUDIO_FILE_SPREADSHEET_CSV },
-            { L"pptx", AVS_OFFICESTUDIO_FILE_PRESENTATION_PPTX },
-            { L"ppt",  AVS_OFFICESTUDIO_FILE_PRESENTATION_PPT },
-            { L"odp",  AVS_OFFICESTUDIO_FILE_PRESENTATION_ODP },
-        };
-        std::wstring sExt = NSFile::GetFileExtention(sPath);
-        for (auto& c : sExt) c = towlower(c);
-        auto it = formats.find(sExt);
-        return it != formats.end() ? it->second : 0;
-    }
 }
 
 bool NSDocAutomation::ShouldRun() {
@@ -106,12 +80,6 @@ int NSDocAutomation::Run() {
         }
     }
 
-    int nFormatTo = FormatFromExtension(sOutput);
-    if (0 == nFormatTo) {
-        std::wcerr << L"Unsupported output extension: " << sOutput << std::endl;
-        return 1;
-    }
-
     // A plain CAscApplicationManager, not the QObject-based GUI singleton
     // (AscAppManager::getInstance()) -- that one installs Qt event filters
     // in its constructor and crashes without a live QCoreApplication, which
@@ -124,30 +92,30 @@ int NSDocAutomation::Run() {
 
     std::wstring sTempDir = NSDirectory::CreateDirectoryWithUniqueName(NSFile::CFileBinary::GetTempPath());
 
-    // Mirrors CSimpleConverter::ThreadProc (fileconverter.h), the class the
-    // running editor uses for its own "export to PDF"/format-conversion
-    // actions, field for field (m_nFormatTo, m_sFontDir, m_sTempDir,
-    // m_bIsNoBase64=false) rather than the minimal from/to-only task this
-    // originally sent -- that minimal form parsed correctly by every
-    // external check (x2t reads back the exact bytes written, and replaying
-    // the exact captured file by hand against x2t succeeds every time) but
-    // still failed specifically when x2t was forked from this GUI binary.
+    // Formats are left for x2t to detect from the file extensions, the same
+    // way its own `x2t <from> <to>` mode does.
     NSStringUtils::CStringBuilder oBuilder;
     oBuilder.WriteString(L"<?xml version=\"1.0\" encoding=\"utf-8\"?><TaskQueueDataConvert><m_sFileFrom>");
     oBuilder.WriteEncodeXmlString(sInput);
     oBuilder.WriteString(L"</m_sFileFrom><m_sFileTo>");
     oBuilder.WriteEncodeXmlString(sOutput);
-    oBuilder.WriteString(L"</m_sFileTo><m_nFormatTo>");
-    oBuilder.WriteString(std::to_wstring(nFormatTo));
-    oBuilder.WriteString(L"</m_nFormatTo><m_sFontDir>");
+    oBuilder.WriteString(L"</m_sFileTo><m_sFontDir>");
     oBuilder.WriteEncodeXmlString(oManager.m_oSettings.fonts_cache_info_path);
-    oBuilder.WriteString(L"</m_sFontDir><m_bIsNoBase64>false</m_bIsNoBase64><m_sAllFontsPath>");
+    oBuilder.WriteString(L"</m_sFontDir><m_sAllFontsPath>");
     oBuilder.WriteEncodeXmlString(oManager.m_oSettings.fonts_cache_info_path + L"/AllFonts.js");
     oBuilder.WriteString(L"</m_sAllFontsPath><m_sTempDir>");
     oBuilder.WriteEncodeXmlString(sTempDir);
     oBuilder.WriteString(L"</m_sTempDir></TaskQueueDataConvert>");
 
-    std::wstring sXmlPath = NSFile::CFileBinary::CreateTempFileWithUniqueName(NSFile::CFileBinary::GetTempPath(), L"CLI");
+    // The ".xml" suffix is load-bearing: x2t only parses its argument as a
+    // TaskQueueDataConvert file when the name ends in ".xml" (see
+    // X2tConverter/src/main.cpp). Anything else is taken as the first of a
+    // bare `x2t <from> <to>` pair, leaving the destination empty and failing
+    // with "Empty sFileFrom or sFileTo".
+    std::wstring sTempName = NSFile::CFileBinary::CreateTempFileWithUniqueName(NSFile::CFileBinary::GetTempPath(), L"CLI");
+    if (NSFile::CFileBinary::Exists(sTempName))
+        NSFile::CFileBinary::Remove(sTempName);
+    std::wstring sXmlPath = sTempName + L".xml";
     NSFile::CFileBinary::SaveToFile(sXmlPath, oBuilder.GetData(), true);
 
     int nReturnCode = NSX2T::Convert(oManager.m_oSettings.file_converter_path + L"/x2t", sXmlPath, &oManager, true);

From 22d31436bc6549446949536fdf341a2badbe2942 Mon Sep 17 00:00:00 2001
From: "Peter P. Lupo" <pplupo@gmail.com>
Date: Mon, 3 Aug 2026 21:35:51 -0400
Subject: [PATCH 6/6] fix: don't crash on a flag with no =value (e.g.
 --convert-to alone)

Also fixes fallout from a bad rebase that had swept in ~120 lines of
unrelated default-save-format, db-support and Wayland-migration code
into utils.cpp (none of it declared in utils.h, so it didn't compile);
utils.cpp is reset to main plus just this guard. src/utils.cpp is
dropped from COMMON_SOURCES since win-linux/src/prop/utils.cpp already
includes it, so listing it separately double-defined every symbol in
it. docautomation.cpp/.h now carry a Euro-Office SPDX header instead of
Ascensio's upstream one, and use the configured include dirs for
applicationmanager.h/x2t.h and the core/DesktopEditor headers instead
of relative ../../../ paths.

Signed-off-by: Peter P. Lupo <pplupo@gmail.com>
---
 win-linux/CMakeLists.txt        |  1 -
 win-linux/src/docautomation.cpp | 42 +++++++++++----------------------
 win-linux/src/docautomation.h   | 26 +++-----------------
 win-linux/src/utils.cpp         |  8 +++++--
 4 files changed, 23 insertions(+), 54 deletions(-)

diff --git a/win-linux/CMakeLists.txt b/win-linux/CMakeLists.txt
index 1c5bb5e19..8fc75c4d8 100644
--- a/win-linux/CMakeLists.txt
+++ b/win-linux/CMakeLists.txt
@@ -183,7 +183,6 @@ set(COMMON_HEADERS
 set(COMMON_SOURCES
     src/prop/cmainwindowimpl.cpp
     src/prop/utils.cpp
-    src/utils.cpp
     src/docautomation.cpp
     src/windows/cmainwindow.cpp
     src/windows/cwindowbase.cpp
diff --git a/win-linux/src/docautomation.cpp b/win-linux/src/docautomation.cpp
index 27e485237..967245dec 100644
--- a/win-linux/src/docautomation.cpp
+++ b/win-linux/src/docautomation.cpp
@@ -1,36 +1,16 @@
 /*
- * (c) Copyright Ascensio System SIA 2010-2019
- *
- * 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
- *
-*/
+ * SPDX-FileCopyrightText: 2026 Euro-Office contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
 
 #include "docautomation.h"
 #include "defines.h"
 #include "utils.h"
-#include "../../../desktop-sdk/ChromiumBasedEditors/lib/include/applicationmanager.h"
-#include "../../../desktop-sdk/ChromiumBasedEditors/lib/src/x2t.h"
-#include "../../../core/DesktopEditor/common/File.h"
-#include "../../../core/DesktopEditor/common/Directory.h"
-#include "../../../core/DesktopEditor/common/StringBuilder.h"
+#include "applicationmanager.h"
+#include "x2t.h"
+#include "common/File.h"
+#include "common/Directory.h"
+#include "common/StringBuilder.h"
 
 #include <iostream>
 
@@ -90,6 +70,12 @@ int NSDocAutomation::Run() {
     std::wstring sAppPath = NSFile::GetProcessDirectory();
     oManager.m_oSettings.file_converter_path = sAppPath + L"/converter";
 
+    // Normal startup builds the font cache via CheckFonts() before any document
+    // is touched; this path skips that startup sequence entirely, so on a
+    // profile that has never run the GUI (fresh install, container, CI) the
+    // AllFonts.js referenced below wouldn't exist yet. Block on it here.
+    oManager.CheckFonts(false);
+
     std::wstring sTempDir = NSDirectory::CreateDirectoryWithUniqueName(NSFile::CFileBinary::GetTempPath());
 
     // Formats are left for x2t to detect from the file extensions, the same
diff --git a/win-linux/src/docautomation.h b/win-linux/src/docautomation.h
index 808e350da..313bcc4bd 100644
--- a/win-linux/src/docautomation.h
+++ b/win-linux/src/docautomation.h
@@ -1,27 +1,7 @@
 /*
- * (c) Copyright Ascensio System SIA 2010-2019
- *
- * 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
- *
-*/
+ * SPDX-FileCopyrightText: 2026 Euro-Office contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
 
 #ifndef DOCAUTOMATION_H
 #define DOCAUTOMATION_H
diff --git a/win-linux/src/utils.cpp b/win-linux/src/utils.cpp
index b085c854c..2bbd067c3 100644
--- a/win-linux/src/utils.cpp
+++ b/win-linux/src/utils.cpp
@@ -114,8 +114,12 @@ namespace InputArgs {
 
     auto argument_value(const std::wstring& param) -> std::wstring {
         for (const auto& item: in_args) {
-            if ( item.find(param) != std::wstring::npos ) {
-                return item.substr(param.size() + 1); // substring after '=' or ':' symbol
+            auto n = item.find(param);
+            if ( n != std::wstring::npos ) {
+                auto value_pos = n + param.size() + 1; // position after '=' or ':' symbol
+                if ( value_pos <= item.length() )
+                    return item.substr(value_pos);
+                return L"";
             }
         }