Feature/vfs windows thumbnails

NEXTCLOUD.cmake

@@ -69,6 +69,16 @@ if(WIN32)
     # MSI Upgrade Code (without brackets)
     set( WIN_MSI_UPGRADE_CODE                "FD2FCCA9-BB8F-4485-8F70-A0621B84A7F4" )
 
+    # CfAPI Shell Extensions
+    set( CFAPI_SHELL_EXTENSIONS_LIB_NAME CfApiShellExtensions )
+
+    set( CFAPI_SHELLEXT_APPID_REG "{E314A650-DCA4-416E-974E-18EA37C213EA}")
+    set( CFAPI_SHELLEXT_APPID_DISPLAY_NAME "${APPLICATION_NAME} CfApi Shell Extensions" )
+
+    set( CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID "6FF9B5B6-389F-444A-9FDD-A286C36EA079" )
+    set( CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID_REG "{${CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID}}" )
+    set( CFAPI_SHELLEXT_THUMBNAIL_HANDLER_DISPLAY_NAME "${APPLICATION_NAME} Thumbnail Handler" )
+
     # Windows build options
     option( BUILD_WIN_MSI "Build MSI scripts and helper DLL" OFF )
     option( BUILD_WIN_TOOLS "Build Win32 migration tools" OFF )

admin/win/msi/CMakeLists.txt

@@ -16,6 +16,7 @@ endif()
 
 set(MSI_INSTALLER_FILENAME "${APPLICATION_SHORTNAME}-${VERSION}${VERSION_SUFFIX}-${MSI_BUILD_ARCH}.msi")
 
+configure_file(RegistryCleanup.vbs.in ${CMAKE_CURRENT_BINARY_DIR}/RegistryCleanup.vbs)
 configure_file(OEM.wxi.in ${CMAKE_CURRENT_BINARY_DIR}/OEM.wxi)
 configure_file(collect-transform.xsl.in ${CMAKE_CURRENT_BINARY_DIR}/collect-transform.xsl)
 configure_file(make-msi.bat.in ${CMAKE_CURRENT_BINARY_DIR}/make-msi.bat)
@@ -26,7 +27,7 @@ install(FILES
         ${CMAKE_CURRENT_BINARY_DIR}/make-msi.bat
         Platform.wxi
         Nextcloud.wxs
-        RegistryCleanup.vbs
+        ${CMAKE_CURRENT_BINARY_DIR}/RegistryCleanup.vbs
         RegistryCleanupCustomAction.wxs
         gui/banner.bmp
         gui/dialog.bmp

admin/win/msi/RegistryCleanup.vbs → admin/win/msi/RegistryCleanup.vbs.in

@@ -1,6 +1,7 @@
 On Error goto 0
 
 Const HKEY_LOCAL_MACHINE = &H80000002
+Const HKEY_CURRENT_USER = &H80000001
 
 Const strObjRegistry = "winmgmts:\\.\root\default:StdRegProv"
 
@@ -49,6 +50,25 @@ Function RegistryCleanupSyncRootManager()
   End If
 End Function
 
+Function RegistryCleanupCfApiShellExtensions()
+  Set objRegistry = GetObject(strObjRegistry)
+
+  strShellExtThumbnailHandlerAppId = "Software\Classes\AppID\@CFAPI_SHELLEXT_APPID_REG@"
+  strShellExtThumbnailHandlerClsId = "Software\Classes\CLSID\@CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID_REG@"
+
+  rootKey = HKEY_CURRENT_USER
+
+  If objRegistry.EnumKey(rootKey, strShellExtThumbnailHandlerAppId, arrSubKeys) = 0 Then
+    RegistryDeleteKeyRecursive rootKey, strShellExtThumbnailHandlerAppId
+  End If
+
+  If objRegistry.EnumKey(rootKey, strShellExtThumbnailHandlerClsId, arrSubKeys) = 0 Then
+    RegistryDeleteKeyRecursive rootKey, strShellExtThumbnailHandlerClsId
+  End If
+
+End Function
+
 Function RegistryCleanup()
   RegistryCleanupSyncRootManager()
+  RegistryCleanupCfApiShellExtensions()
 End Function

config.h.in

@@ -44,4 +44,13 @@
 
 #cmakedefine BUILD_UPDATER "@BUILD_UPDATER@"
 
+#cmakedefine CFAPI_SHELLEXT_APPID_REG "@CFAPI_SHELLEXT_APPID_REG@"
+#cmakedefine CFAPI_SHELLEXT_APPID_DISPLAY_NAME "@CFAPI_SHELLEXT_APPID_DISPLAY_NAME@"
+
+#cmakedefine CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID "@CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID@"
+#cmakedefine CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID_REG "@CFAPI_SHELLEXT_THUMBNAIL_HANDLER_CLASS_ID_REG@"
+#cmakedefine CFAPI_SHELLEXT_THUMBNAIL_HANDLER_DISPLAY_NAME "@CFAPI_SHELLEXT_THUMBNAIL_HANDLER_DISPLAY_NAME@"
+
+#cmakedefine CFAPI_SHELL_EXTENSIONS_LIB_NAME "@CFAPI_SHELL_EXTENSIONS_LIB_NAME@"
+
 #endif

src/common/filesystembase.h

@@ -25,7 +25,7 @@
 #include <QFileInfo>
 #include <QLoggingCategory>
 
-#include <ocsynclib.h>
+#include <csync/ocsynclib.h>
 
 class QFile;
 

src/common/shellextensionutils.cpp

@@ -0,0 +1,36 @@
+#include "shellextensionutils.h"
+#include <QJsonDocument>
+#include <QLoggingCategory>
+
+namespace VfsShellExtensions {
+
+Q_LOGGING_CATEGORY(lcShellExtensionUtils, "nextcloud.gui.shellextensionutils", QtInfoMsg)
+
+QString VfsShellExtensions::serverNameForApplicationName(const QString &applicationName)
+{
+    return applicationName + QStringLiteral(":VfsShellExtensionsServer");
+}
+
+QString VfsShellExtensions::serverNameForApplicationNameDefault()
+{
+    return serverNameForApplicationName(APPLICATION_NAME);
+}
+namespace Protocol {
+    QByteArray createJsonMessage(const QVariantMap &message)
+    {
+        QVariantMap messageCopy = message;
+        messageCopy[QStringLiteral("version")] = Version;
+        return QJsonDocument::fromVariant((messageCopy)).toJson(QJsonDocument::Compact);
+    }
+
+    bool validateProtocolVersion(const QVariantMap &message)
+    {
+        const auto valid = message.value(QStringLiteral("version")) == Version;
+        if (!valid) {
+            qCWarning(lcShellExtensionUtils) << "Invalid shell extensions IPC protocol: " << message.value(QStringLiteral("version")) << " vs " << Version;
+        }
+        Q_ASSERT(valid);
+        return valid;
+    }
+}
+}

src/common/shellextensionutils.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) by Oleksandr Zolotov <alex@nextcloud.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#pragma once
+#include "config.h"
+#include <QByteArray>
+#include <QString>
+#include <QVariantMap>
+
+namespace VfsShellExtensions {
+QString serverNameForApplicationName(const QString &applicationName);
+QString serverNameForApplicationNameDefault();
+
+namespace Protocol {
+    static constexpr auto ThumbnailProviderRequestKey = "thumbnailProviderRequest";
+    static constexpr auto ThumbnailProviderRequestFilePathKey = "filePath";
+    static constexpr auto ThumbnailProviderRequestFileSizeKey = "fileSize";
+    static constexpr auto ThumnailProviderDataKey = "thumbnailData";
+    static constexpr auto Version = "1.0";
+
+    QByteArray createJsonMessage(const QVariantMap &message);
+    bool validateProtocolVersion(const QVariantMap &message);
+}
+}

src/common/utility.h

@@ -21,7 +21,7 @@
 #define UTILITY_H
 
 
-#include "ocsynclib.h"
+#include "csync/ocsynclib.h"
 #include <QString>
 #include <QByteArray>
 #include <QDateTime>
@@ -254,6 +254,7 @@ namespace Utility {
     OCSYNC_EXPORT bool registryDeleteKeyTree(HKEY hRootKey, const QString &subKey);
     OCSYNC_EXPORT bool registryDeleteKeyValue(HKEY hRootKey, const QString &subKey, const QString &valueName);
     OCSYNC_EXPORT bool registryWalkSubKeys(HKEY hRootKey, const QString &subKey, const std::function<void(HKEY, const QString &)> &callback);
+    OCSYNC_EXPORT bool registryWalkValues(HKEY hRootKey, const QString &subKey, const std::function<void(const QString &, bool *)> &callback);
     OCSYNC_EXPORT QRect getTaskbarDimensions();
 
     // Possibly refactor to share code with UnixTimevalToFileTime in c_time.c

src/common/utility_win.cpp

@@ -28,8 +28,11 @@
 #include <winbase.h>
 #include <windows.h>
 #include <winerror.h>
-
+#include <QCoreApplication>
+#include <QDir>
+#include <QFile>
 #include <QLibrary>
+#include <QSettings>
 
 extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
 
@@ -354,6 +357,50 @@ bool Utility::registryWalkSubKeys(HKEY hRootKey, const QString &subKey, const st
     return retCode != ERROR_NO_MORE_ITEMS;
 }
 
+bool Utility::registryWalkValues(HKEY hRootKey, const QString &subKey, const std::function<void(const QString &, bool *)> &callback)
+{
+    HKEY hKey;
+    REGSAM sam = KEY_QUERY_VALUE;
+    LONG result = RegOpenKeyEx(hRootKey, reinterpret_cast<LPCWSTR>(subKey.utf16()), 0, sam, &hKey);
+    ASSERT(result == ERROR_SUCCESS);
+    if (result != ERROR_SUCCESS) {
+        return false;
+    }
+
+    DWORD maxValueNameSize = 0;
+    result = RegQueryInfoKey(hKey, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, &maxValueNameSize, nullptr, nullptr, nullptr);
+    ASSERT(result == ERROR_SUCCESS);
+    if (result != ERROR_SUCCESS) {
+        RegCloseKey(hKey);
+        return false;
+    }
+
+    QString valueName;
+    valueName.reserve(maxValueNameSize + 1);
+
+    DWORD retCode = ERROR_SUCCESS;
+    bool done = false;
+    for (DWORD i = 0; retCode == ERROR_SUCCESS; ++i) {
+        Q_ASSERT(unsigned(valueName.capacity()) > maxValueNameSize);
+        valueName.resize(valueName.capacity());
+        DWORD valueNameSize = valueName.size();
+        retCode = RegEnumValue(hKey, i, reinterpret_cast<LPWSTR>(valueName.data()), &valueNameSize, nullptr, nullptr, nullptr, nullptr);
+
+        ASSERT(result == ERROR_SUCCESS || retCode == ERROR_NO_MORE_ITEMS);
+        if (retCode == ERROR_SUCCESS) {
+            valueName.resize(valueNameSize);
+            callback(valueName, &done);
+
+            if (done) {
+                break;
+            }
+        }
+    }
+
+    RegCloseKey(hKey);
+    return retCode != ERROR_NO_MORE_ITEMS;
+}
+
 DWORD Utility::convertSizeToDWORD(size_t &convertVar)
 {
     if( convertVar > UINT_MAX ) {

src/common/vfs.h

@@ -49,6 +49,9 @@ struct OCSYNC_EXPORT VfsSetupParams
     // Folder alias
     QString alias;
 
+    // Folder registry navigation Pane CLSID
+    QString navigationPaneClsid;
+
     /** The path to the synced folder on the account
      *
      * Always ends with /.

src/gui/CMakeLists.txt

@@ -291,7 +291,7 @@ IF( NOT WIN32 AND NOT APPLE )
 set(client_SRCS ${client_SRCS} folderwatcher_linux.cpp)
 ENDIF()
 IF( WIN32 )
-set(client_SRCS ${client_SRCS} folderwatcher_win.cpp)
+set(client_SRCS ${client_SRCS} folderwatcher_win.cpp shellextensionsserver.cpp ${CMAKE_SOURCE_DIR}/src/common/shellextensionutils.cpp)
 ENDIF()
 IF( APPLE )
 list(APPEND client_SRCS folderwatcher_mac.cpp)

src/gui/application.cpp

@@ -35,6 +35,7 @@
 #include "accountmanager.h"
 #include "creds/abstractcredentials.h"
 #include "pushnotifications.h"
+#include "shellextensionsserver.h"
 
 #if defined(BUILD_UPDATER)
 #include "updater/ocupdater.h"
@@ -319,6 +320,9 @@ Application::Application(int &argc, char **argv)
         qCInfo(lcApplication) << "VFS suffix plugin is available";
 
     _folderManager.reset(new FolderMan);
+#ifdef Q_OS_WIN
+    _shellExtensionsServer.reset(new ShellExtensionsServer);
+#endif
 
     connect(this, &SharedTools::QtSingleApplication::messageReceived, this, &Application::slotParseMessage);
 

src/gui/application.h

@@ -46,6 +46,7 @@ Q_DECLARE_LOGGING_CATEGORY(lcApplication)
 
 class Theme;
 class Folder;
+class ShellExtensionsServer;
 class SslErrorDialog;
 
 /**
@@ -144,6 +145,9 @@ protected slots:
     QScopedPointer<CrashReporter::Handler> _crashHandler;
 #endif
     QScopedPointer<FolderMan> _folderManager;
+#ifdef Q_OS_WIN
+    QScopedPointer<ShellExtensionsServer> _shellExtensionsServer;
+#endif
 };
 
 } // namespace OCC

src/gui/folder.cpp

@@ -498,6 +498,7 @@ void Folder::startVfs()
     vfsParams.filesystemPath = path();
     vfsParams.displayName = shortGuiRemotePathOrAppName();
     vfsParams.alias = alias();
+    vfsParams.navigationPaneClsid = navigationPaneClsid().toString();
     vfsParams.remotePath = remotePathTrailingSlash();
     vfsParams.account = _accountState->account();
     vfsParams.journal = &_journal;

src/gui/folderman.h

@@ -26,6 +26,7 @@
 #include "syncfileitem.h"
 
 class TestFolderMan;
+class TestCfApiShellExtensionsIPC;
 
 namespace OCC {
 
@@ -362,6 +363,7 @@ private slots:
     explicit FolderMan(QObject *parent = nullptr);
     friend class OCC::Application;
     friend class ::TestFolderMan;
+    friend class ::TestCfApiShellExtensionsIPC;
 };
 
 } // namespace OCC